<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <meta name="description" content="Traceur de fonctions mathématiques en JavaScript"/>
        <meta name="author" content="Yannick Vessaz"/>
        <meta name="revised" content="2010/09/25"/>
        <title>Graphics</title>
        <link rel="stylesheet" type="text/css" href="Style/default.css"/>
        <script type="text/javascript" src="JavaScript/ColorPicker.js"></script>
        <script type="text/javascript" src="JavaScript/Etude.js"></script>
        <script type="text/javascript" src="JavaScript/Interface.js"></script>
        <script type="text/javascript" src="JavaScript/Outils.js"></script>
        <script type="text/javascript" src="JavaScript/Sauvegardes.js"></script>
        <script type="text/javascript" src="JavaScript/AffichageStandard.js"></script>
        <script type="text/javascript" src="JavaScript/Affichage3D.js"></script>
        <script type="text/javascript" src="JavaScript/AffichageUniboard.js"></script>
        <script type="text/javascript" src="JavaScript/AffichageXPM.js"></script>

        <script src="JavaScript/jQuery/jquery-1.3.2.min.js" type="text/javascript"></script>
        <script src="JavaScript/jQuery/jquery.disable.text.select.js" type="text/javascript"></script>
        <script type="text/javascript">
// <![CDATA[
        // --- Variables nécessaires au fonctionnement du widget ---
                $(document).ready(function(){
                    $(document).disableTextSelect();
                   
                    $("input").mouseover(function(){
                        $(document).enableTextSelect(); 
                    });
                    
                    $("input").mouseout(function(){
                        $(document).disableTextSelect(); 
                    });
                    //$("input").change(function(){$(this).trigger('blur');});
                });
                var largeur = 500
                var hauteur = 400
                var graphique = ""
                var image = ""
                var tableau = new Array()
                var ligne = new Array()
                var j = 0

                var interdit = new Array(";", "interdit", "'", '"', "eval", "new", "sankore", "=", "document", "window", "alert")

                var menuActuel = ""
                var mouseDown = false
                var outil = "point"

                var pointX = new Array()
                var pointY = new Array()
                var pente = new Array()
                var pente2 = new Array()
                var precision = 0.02

                var couleurFonction = "rgb(193,255,0)"
                var r = 255
                var g = 0
                var b = 0
                var couleurEchelle = "rgba(255,255,255,0.8)"
                var couleurGrille = "rgba(255,255,255,0.1)"
                var couleurAxes = "rgba(0,0,0,0.5)"

                var decalageX = 0
                var decalageY = 0

                var lineWidth = 3
                //alert(navigator.appName+" ; "+navigator.appVersion+" ; "+navigator.userAgent)

        // ------------- Fonctions du widgets -------------
        // Lance la procédure pour dessiner la fonction qui se trouve dans l'input en haut du widget.
        // Permet aussi d'actualiser le graphique.
                function actualiserGraph(){
                        evaluer(document.getElementById("inputEq").value)
                }

        // Cette fonction détermine si la fonction entrée est valide ou non.
        // Elle retourne "true" si la fonction ne comporte pas de caractères interdits et "false" dans le cas contraire.
                function check(eq){
                   for(var i=0; i<interdit.length; i++){
                      var condition = ""
                      for(var k=0; k<interdit[i].length; k++){
                         if(k==0){
                            condition = condition + "eq.charAt(j) == interdit[i].charAt(0)"
                         }
                         else{
                            condition = condition + "&& eq.charAt(j+"+k+") == interdit[i].charAt("+k+")"
                         }
                      }
                      //alert(interdit[i]+" ; "+condition)
                      for(var j=0; j<eq.length; j++){
                         if(eval(condition)){
                                document.getElementById("spanFctInterdite").innerHTML = interdit[i]
                                afficherMenu("fctInterdite")
                            //alert("------- Erreur -------\nImpossible de dessiner la fonction ... \nExpression ou carractère invalide : "+interdit[i]+"")
                            return false
                         }
                      }
                   }
                   return true
                }

        // Cette fonction permet de choisir la méthode d'affichage entre:
        // 1) Image au format XPM
        // 2) Affichage directe dans sankore
        // 3) Autres Méthodes d'affichages (svg ou canvas)
                function evaluer(eq){
                        if(check(eq)){
                                try{
                                        if(historique[0]!=eq && eq!="1000"){
                                                for(var i=0;i<historique.length;i++){
                                                        if(historique[i]==eq){
                                                                historique.splice(i, 1)
                                                        }
                                                }
                                                historique.unshift(eq)
                                                actualiserHistorique()
                                        }
                                        if(fonction3D){
                                        dessiner3D(eq)
                                        }
                                        else if(document.getElementById("selectMethodeAffichage").value == "xpm"){
                                        evaluerXPM(eq)
                                        }
                                        else if(document.getElementById("selectMethodeAffichage").value == "sankore"){
                                        evaluerUniboard(eq)
                                        }
                                        else if(document.getElementById("selectMethodeAffichage").value == "canvas" || document.getElementById("selectMethodeAffichage").value == "canvas2"){
                                                evaluerCanvas(eq)
                                        }
                                        else{
                                                evaluerSVG(eq)
                                        }
                                }
                                catch(err){
                                        afficherMenu("erreurFct")
                                }
                        }
                }

        // ---- Fonctions Mathématiques et constantes ----
        // (rempalce sin() par Math.sin(), cos() par Math.cos(), tan() par Math.tan(), etc.
                var pi = 4 * atan(1)
                var e = exp(1)

                function sin(valeur){
                   return Math.sin(valeur)
                }
                function cos(valeur){
                   return Math.cos(valeur)
                }
                function tan(valeur){
                   return Math.tan(valeur)
                }
                function cot(valeur){
                   return 1/Math.tan(valeur)
                }
                function sec(valeur){
                   return 1/cos(valeur)
                }
                function csc(valeur){
                   return 1/sin(valeur)
                }

                function asin(valeur){
                   return Math.asin(valeur)
                }
                function acos(valeur){
                   return Math.acos(valeur)
                }
                function atan(valeur){
                   return Math.atan(valeur)
                }
                function acot(valeur){
                   return Math.atan(1/valeur)
                }
                function asec(valeur){
                   return Math.acos(1/valeur)
                }
                function acsc(valeur){
                   return Math.asin(1/valeur)
                }

                var arcsin = asin
                var arccos = acos
                var arctan = atan
                var arccot = acot
                var arcsec = asec
                var arccsc = acsc

                function sinh(valeur){
                   return (Math.exp(valeur)-Math.exp(-valeur))/2
                }
                function cosh(valeur){
                   return (Math.exp(valeur)+Math.exp(-valeur))/2
                }
                function tanh(valeur){
                   return (Math.exp(valeur)-Math.exp(-valeur))/(Math.exp(valeur)+Math.exp(-valeur))
                }
                function coth(valeur){
                   return (Math.exp(valeur)+Math.exp(-valeur))/(Math.exp(valeur)-Math.exp(-valeur))
                }
                function sech(valeur){
                   return 1/cosh(valeur)
                }
                function csch(valeur){
                   return 1/sinh(valeur)
                }

                function asinh(valeur){
                   return Math.log(valeur+Math.sqrt(Math.pow(valeur,2)+1))
                }
                function acosh(valeur){
                   return Math.log(valeur+Math.sqrt(Math.pow(valeur,2)-1))
                }
                function atanh(valeur){
                   return Math.log((1+valeur)/(1-valeur))/2
                }
                function acoth(valeur){
                   return Math.log((valeur+1)/(valeur-1))/2
                }

                var arcsinh = asinh
                var arccosh = acosh
                var arctanh = atanh
                var arccoth = acoth

                function sqrt(valeur){
                   return Math.sqrt(valeur)
                }
                function pow(valeur1, valeur2){
                   return Math.pow(valeur1, valeur2)
                }
                function root(valeur1, valeur2){
                   if(valeur2%2==1 && valeur1<0){
                      return -Math.pow(-valeur1, (1/valeur2))
                   }
                   else{
                      return Math.pow(valeur1, (1/valeur2))
                   }
                }

                function exp(valeur){
                   return Math.exp(valeur)
                }
                function log(valeur){
                   return Math.log(valeur)/Math.log(10)
                }
                function ln(valeur){
                   return Math.log(valeur)
                }

                function abs(valeur){
                   return Math.abs(valeur)
                }
                function sign(valeur){
                        if(valeur<0){
                                return -1
                        }
                        else if(valeur>0){
                                return 1
                        }
                        else{
                                return undefined
                        }
                }

                function round(valeur){
                   return Math.round(valeur)
                }
                function ceil(valeur){
                   return Math.ceil(valeur)
                }
                function floor(valeur){
                   return Math.floor(valeur)
                }
                function random(){
                   return Math.random()
                }
// ]]>
        </script>
    </head>
    <body onload="evaluer(1000);checkCouleurs3D();loadOptions();majAuto()" onkeypress="keyPress(event)">
        <!-- ..... Haut du Widget ..... -->
        <span id="haut">
            <span id="texteFonction">Function: </span><input id="inputEq" onkeypress='if(event.keyCode==13) evaluer(this.value)' onkeyup="document.getElementById('fonctionActuelle').innerHTML = this.value"/> 
            <input type="button" onclick='evaluer(document.getElementById("inputEq").value)' value="Display"/><input type="button" style="width:21px;" onclick="menuFonctions()" value="+"/>
        </span>
        <!--<div id="miniMax" onclick="miniMax()">-</div>  ▶▼ -->
        <div id="boutonAgrandir" class="miniBouton" onclick="agrandirAffichage()">^</div>
        <!--<div id="boutonFermer" class="miniBouton" onclick="close()"></div>-->
        <br/>

        <!-- ..... Millieu du Widget ..... -->
        <!-- Zone d'affichage -->
        <div id="affichage" onmousedown="sourisDown()" onmouseup="sourisUp()" onmousemove="sourisMove(event)" ondblclick="doubleClick(event.ctrlKey)"></div>
        <!-- Zone de boutons gauche -->
        <div id="gauche">
            X-axis: <br/>
            <input id="borneXGauche" class="smallInput" value="-5" onkeypress='if(event.keyCode==13) actualiserGraph()'/> à <input id="borneXDroite" class="smallInput" value="5" onkeypress='if(event.keyCode==13) actualiserGraph()'/> <br/>
            Y-axis: <br/>
            <input id="borneYGauche" class="smallInput" value="-5" onkeypress='if(event.keyCode==13) actualiserGraph()'/> à <input id="borneYDroite" class="smallInput" value="5" onkeypress='if(event.keyCode==13) actualiserGraph()'/>
            <br/>Zoom: <br/>
            <input type="button" style="width:45%;" onclick='zoom(1.25)' value="-"/><input type="button" style="width:45%; position:relative; left: 9px;" onclick='zoom(0.8)' value="+"/><br/><br/>
            Color: <br/>
            <div id="buttonColor" title="couleurFonction" onclick="colorPicker(this.id); afficherMenu('menuCouleur')"></div>
            <br/><br/>
            <hr/>
            <br/>
            Menus:
            <input type="button" class="boutonGauche" onclick='document.getElementById("etudeFct").innerHTML = document.getElementById("inputEq").value;afficherMenu("menuOutils")' value="Tools"/>
            <input type="button" class="boutonGauche" onclick='afficherMenu("menuOptions")' value="Options"/>
            <input type="button" class="boutonGauche" onclick='afficherMenu("menuAide")' value="Help"/>
            <input type="button" class="boutonGauche" onclick='afficherMenu("menuCredits")' value="About"/>

            <!-- ..... Menus ..... -->
            <div id="menu" class="menu">
                <div id="contenuMenu" class="contenuMenu"></div>
                <div class="barreBasMenu">
                    <input type="button" onclick='cacherMenu()' value="Cancel"/>
                </div>
            </div>
        </div>
        <div id="gauche3D">
            <input type="button" class="boutonGauche3D" onclick='afficherMenu("menuCredits")' value="About"/>
            <input type="button" class="boutonGauche3D" onclick='afficherMenu("menuAide")' value="Help"/>
            <input type="button" class="boutonGauche3D" onclick='afficherMenu("menuOptions")' value="Options"/>
            <input type="button" style="width:30px;" onclick='zoom3D(0.8)' value="-"/><input type="button" style="width:30px;" onclick='zoom3D(1.25)' value="+"/>
        </div>

        <!-- Options -->
        <div id="menuOptions" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuOptions")'>Widget</td>
                    <td onclick='afficherMenu("menuOptions2D")'>2D</td>
                    <td onclick='afficherMenu("menuOptions3D")'>3D</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <h3>Widget options</h3>

                Themes of widget: <select id="selectTheme" onchange="changerTheme(this.value)">
                    <option value="noir">Black</option>
                    <option value="bleu">Blue</option>
                    <option value="blanc">White</option>
                </select><br/>
                <br/><br/><br/>
                <span class="gras">Control options:</span><br/>
                <input type="button" class="boutonSauvegarde" onclick="saveOptions()" value="Save"/><input type="button" class="boutonSauvegarde" onclick="loadOptions()" value="Load"/> <input class="boutonSauvegarde2" type="button" onclick="delOptions()" value="Delete"/><input class="boutonSauvegarde2" type="button" onclick="alertOptions()" value="Display"/><br/>
                <span class="texteSecondaire">Save a widget options in cookies or load an options from cookies or delete a registered options.</span>
                <br/><br/>
                <label for="checkMaJ">Automatically update when a widget opening.</label> <input type="checkbox" id="checkMaJ" onclick="checkboxMaJ()"/>
                <br/>
                <div id="cacheCookies"><br/><br/><h1>Cookies are disabled. You cannot save an options...</h1></div>
                <div id="cacheMaJ">You are using the last version of this widget.</div>
                <input type="button" onclick='reset()' value="Reload widget" style="position:absolute; bottom:20px; width:140px; height:32px;"/>
                <input type="button" onclick='miseAjour()' value="Updated" style="position:absolute; bottom:20px; left:160px; width:140px; height:32px;"/>
            </div>
            <div class="barreBasMenu"><input type="button" onclick="cacherMenu(); actualiserGraph()" value="Check"/></div>
        </div>

        <div id="menuOptions2D" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td onclick='afficherMenu("menuOptions")'>Widget</td>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuOptions2D")'>2D</td>
                    <td onclick='afficherMenu("menuOptions3D")'>3D</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <h3>Options 2D</h3>
                The graphical method displaying:<select id="selectMethodeAffichage">
                    <option value="canvas">canvas (lines)</option>
                    <option value="canvas2">canvas (points)</option>
                    <option value="svg">svg</option>
                    <option value="svg2">svg (1 image)</option>
                    <option value="xpm">xpm</option>
                    <option value="sankore">sankore</option>
                </select> <br/>
                Zoom default: 
                <input value="5" class="smallInput" id="zoomDefaut"/>
                <input type="button" onclick='reinitialiserZoom(document.getElementById("zoomDefaut").value)' value="Reset zoom"/> <br/>
                <br/>
                <input type="checkbox" id="checkGrille" checked="true" onclick="actualiserGraph()"/><label for="checkGrille">Show grid</label> <br/>
                <input type="checkbox" id="checkAxes" checked="true" onclick="actualiserGraph()"/><label for="checkAxes">Show axis</label> <br/>
                <input type="checkbox" id="checkEchelle" checked="true" onclick="actualiserGraph()"/><label for="checkEchelle">Scale</label> <br/>
                Thickness: <input id="inputTaille" class="smallInput" value="3" onkeypress='if(event.keyCode==13) actualiserGraph()' style=""/>
                <div class="boutonPlus" type="button" onclick="boutonPlus('inputTaille', 1); actualiserGraph()">+</div><div class="boutonMoins" type="button" onclick="boutonMoins('inputTaille', 1); actualiserGraph()">-</div> <br/>
                <br/>
                Offset diagram: 
                x=<input value="0" class="smallInput" id="inputDecalageX" onkeyup="decalageX = parseFloat(this.value)"/>
                y=<input value="0" class="smallInput" id="inputDecalageY" onkeyup="decalageY = parseFloat(this.value)"/>
                <br/>
                Accuracy graph:
                <input value="0.02" class="smallInput" id="inputPrecision" onkeyup="precision = parseFloat(this.value)"/>
                <div class="boutonPlus" type="button" onclick="boutonPlus('inputPrecision', 0.01); precision = parseFloat(document.getElementById('inputPrecision').value); actualiserGraph()">+</div><div class="boutonMoins" type="button" onclick="boutonMoins('inputPrecision', 0.01); precision = parseFloat(document.getElementById('inputPrecision').value); actualiserGraph()">-</div> <br/>
                <br/>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu(); actualiserGraph()' value="Check"/></div>
        </div>

        <div id="menuOptions3D" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td onclick='afficherMenu("menuOptions")'>Widget</td>
                    <td onclick='afficherMenu("menuOptions2D")'>2D</td>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuOptions3D")'>3D</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <h3>Options 3D</h3>
                Show the style: 
                <select id="selectAffichage3D">
                    <option value="surfaces"> surfaces </option>
                    <option value="points"> points </option>
                </select> <input type="button" onclick='reinitialiserZoom(5)' value="Reset display"/> <br/>
                <br/>
                Accuracy function: <input value="0.2" class="smallInput" id="inputPrecision3D" onkeyup="precisionFonction3D = parseFloat(this.value)"/>
                <div class="boutonPlus" type="button" onclick="boutonPlus('inputPrecision3D', 0.1); precisionFonction3D = parseFloat(document.getElementById('inputPrecision3D').value); actualiserGraph()">+</div><div class="boutonMoins" type="button" onclick="boutonMoins('inputPrecision3D', 0.1); precisionFonction3D = parseFloat(document.getElementById('inputPrecision3D').value); actualiserGraph()">-</div> <br/>
                <br/>
                Use the color:<br/>
                red:
                <select onchange="checkCouleurs3D()" id="selectRouge3D">
                    <option value="plus">positive value</option>
                    <option value="moins">negative value</option>
                    <option value="tout">general value</option>
                </select>
                <br/>
                green :
                <select onchange="checkCouleurs3D()" id="selectVert3D">
                    <option value="moins">negative value</option>
                    <option value="plus">positive value</option>					
                    <option value="tout">general value</option>
                </select>
                <br/>
                blue :
                <select onchange="checkCouleurs3D()" id="selectBleu3D">
                    <option value="tout">general value</option>
                    <option value="plus">positive value</option>
                    <option value="moins">negative value</option>					
                </select>
                <br/>
                General value : <input class="smallInput" id="couleur3Dgenerale" type="texte" value="0" onkeyup="checkCouleurs3D()"/> (from 0 to 255)
                <br/>
                <span id="apercuCouleur3D"></span>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu(); actualiserGraph()' value="Check"/></div>
        </div>

        <!-- Aide -->
        <div id="menuAide" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuAide")'>Using</td>
                    <td onclick='afficherMenu("menuAideExemples")'>Examples</td>
                    <td onclick='afficherMenu("menuAideAutres")'>Other</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <h1>How it work.</h1>
                <p>This widget allow to draw mathematical function. Enter function in the field in the top part of widget and press "Show".</p>
                <p>You can enter following mathematical function:<br/>
                    <h2>Basic operations</h2>
                    <ul>
                        <li>Plus -> <span class="gras">+</span></li>
                        <li>Minus -> <span class="gras">-</span></li>
                        <li>Multiplication -> <span class="gras">*</span></li>
                        <li>Division -> <span class="gras">/</span></li>
                        <li>Mod -> <span class="gras">%</span></li>
                    </ul>
                    <h2>Trigonometric functions</h2>
                    <ul>
                        <li>Sine -> <span class="gras">sin(x)</span></li>
                        <li>Cosine -> <span class="gras">cos(x)</span></li>
                        <li>Tangent -> <span class="gras">tan(x)</span></li>
                        <li>Cotangent -> <span class="gras">cot(x)</span></li>
                        <li>Secant -> <span class="gras">sec(x)</span></li>
                        <li>Cosecant -> <span class="gras">csc(x)</span></li>
                    </ul>
                    <ul>
                        <li>Arc sine -> <span class="gras">arcsin(x)</span> ou <span class="gras">asin(x)</span></li>
                        <li>Arc cosine -> <span class="gras">arccos(x)</span> ou <span class="gras">acos(x)</span></li>
                        <li>Arc tangent -> <span class="gras">arctan(x)</span> ou <span class="gras">atan(x)</span></li>
                        <li>Arc cotangent -> <span class="gras">arccot(x)</span> ou <span class="gras">acot(x)</span></li>
                    </ul>
                    <h2>Hyperbolic functions</h2>
                    <ul>
                        <li>Hyperbolic sine -> <span class="gras">sinh(x)</span></li>
                        <li>Hyperbolic cosine -> <span class="gras">cosh(x)</span></li>
                        <li>Hyperbolic tangent -> <span class="gras">tanh(x)</span></li>
                        <li>Hyperbolic cotangent -> <span class="gras">coth(x)</span></li>
                        <li>Hyperbolic secant -> <span class="gras">sech(x)</span></li>
                        <li>Hyperbolic cosecant -> <span class="gras">csch(x)</span></li>
                    </ul>
                    <ul>
                        <li>Hyperbolic arc sine -> <span class="gras">arcsinh(x)</span> or <span class="gras">asinh(x)</span></li>
                        <li>Hyperbolic arc cosine -> <span class="gras">arccosh(x)</span> or <span class="gras">acosh(x)</span></li>
                        <li>Hyperbolic arc tangent -> <span class="gras">arctanh(x)</span> or <span class="gras">atanh(x)</span></li>
                        <li>Hyperbolic arc cotangent -> <span class="gras">arccoth(x)</span> or <span class="gras">acoth(x)</span></li>
                    </ul>
                    <h2>Square roots and degrees</h2>
                    <ul>
                        <li>Square root -> <span class="gras">sqrt(x)</span></li>
                        <li>Degree -> <span class="gras">pow(x, y)</span> <span class="texteSecondaire">Variable x to the power y</span></li>
                        <li>Root -> <span class="gras">root(x, y)</span> <span class="texteSecondaire">Root y of x</span></li>
                    </ul>
                    <h2>Exponential and logarithm</h2>
                    <ul>
                        <li>e<span style="vertical-align:super;">x</span> -> <span class="gras">exp(x)</span></li>
                        <li>Natural logarithm -> <span class="gras">ln(x)</span></li>
                        <li>Decimal logarithm -> <span class="gras">log(x)</span></li>
                    </ul>
                    <h2>Absolute number value</h2>
                    <ul>
                        <li>|x| -> <span class="gras">abs(x)</span></li>
                    </ul>
                    <h2>Rounding</h2>
                    <ul>
                        <li><span class="gras">round(x)</span> -> rounding to the nearest whole number</li>
                        <li><span class="gras">ceil(x)</span> -> rounding to the nearest whole number in a big way</li>
                        <li><span class="gras">floor(x)</span> -> rounding to the nearest whole number the smaller side</li>
                    </ul>					
                </p> <br/>
                <hr/>
                <h1>Constants</h1>
                <p>Also are available some constants:<br/>
                    <ul>
                        <li><span class="gras">pi</span> = 4 * atan(1) ≈  3,141592653589793</li>
                        <li><span class="gras">e</span> = exp(1) ≈ 2.718281828459045</li>
                    </ul>
                </p>
                <br/>
                <hr/>
                <h1>Keyboard keys</h1>
                <p style="font-size:90%;">
                    esc -> reset widget <br/>
                    ctrl + left arrow -> graph will be moved left<br/>
                    ctrl + top arrow -> graph will be moved top<br/>
                    ctrl + right arrow -> graph will be moved right<br/>
                    ctrl + bottom arrow -> graph will be moved bottom<br/>
                    <br/>
                </p>
                <br/>
                <input type="button" value="User's guide" onclick="navigateur('Guide_Utilisateur.html')" style="position:absolute;bottom:0px;left:0px;"/>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <div id="menuAideExemples" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td onclick='afficherMenu("menuAide")'>Using</td>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuAideExemples")'>Examples</td>
                    <td onclick='afficherMenu("menuAideAutres")'>Other</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <span class="texteSecondaire">(You can view example. Do not forget to set accuracy in options if necessary.)</span>
                <br/><br/>
                <hr/>
                <h1>Functions 2D</h1>
                <p>
                    <span class="survol" onclick="document.getElementById('inputEq').value = '0.5*x+1' ; actualiserGraph()">0.5*x+1</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'pow(x,2)-3' ; actualiserGraph()">pow(x,2)-3</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = '1/x' ; actualiserGraph()">1/x</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'atan(x)' ; actualiserGraph()">atan(x)</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = '(x+1/x)/1.2' ; actualiserGraph()">(x+1/x)/1.2</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'sin(10*x*x)*0.5' ; actualiserGraph()">sin(10*x*x)*0.5</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'log(pow(x-2,2))' ; actualiserGraph()">log(pow(x-2,2))</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = '(x*x-5*x+5)*exp(x)/5' ; actualiserGraph()">(x*x-5*x+5)*exp(x)/5</span> <br/>

                    <span class="survol" onclick="document.getElementById('inputEq').value = 'random()' ; evaluer('random()')">random()</span> <br/>
                </p>
                <br/><br/>
                <hr/>
                <h1>Functions 3D</h1>
                <p>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'sin(x)+cos(y)' ; actualiserGraph()">sin(x)+cos(y)</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'sqrt(10-x*x)' ; actualiserGraph()">sqrt(10-x*x)</span> <br/>
                    <span class="survol" onclick="document.getElementById('inputEq').value = 'atan(x)+atan(y)' ; actualiserGraph()">atan(x)+atan(y)</span> <br/>
                </p>
                <br/>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <div id="menuAideAutres" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td onclick='afficherMenu("menuAide")'>Using</td>
                    <td onclick='afficherMenu("menuAideExemples")'>Examples</td>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuAideAutres")'>Other</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <h4>Save graph</h4>
                In some browsers when used display method "Canvas" you can save graph by clicking it with right mouse button and selecting "Save image". Also you can save 3D-graphs.
                <br/><br/>
                <h4>Offset</h4>
                If graph isn't in the right place (larger than canvas) then can you set necessary parameters graph displaying in settings menu. 
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!-- Crédits -->
        <div id="menuCredits" class="menu">
            <div class="contenuMenu" style="text-align:justify;">
                <br/>
                <table id="credits">
                    <tr>
                        <td>
                            <img src="icon.png"/>
                            <h3>Widget is developed by</h3> 
                            Yannick Vessaz <br/>
                            <a href='mailto:yannick.vessaz@gmail.com'>yannick.vessaz@gmail.com</a>
                        </td>
                    </tr>
                </table>
                <span class="texteSecondaire">
                    <br/><br/>
                    If you want to inform about bug, make a proposal or just ask some questions then you can  contact to me at the following e-mail: <a href='mailto:yannick.vessaz@gmail.com'>e-mail</a>.
                    <br/><br/>
                    If you want to change background design then you can contact at following address: <a href="http://kde.org">KDE</a>.
                </span>
                <span id="version" class="texteSecondaire" style="position:absolute;bottom:10px;left:15px;">version 1.3</span>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!-- Outils -->
        <div id="menuOutils" class="menu">
            <div class="contenuMenu">
                <h3 style="margin-top:0px; margin-bottom:15px;">Tools</h3> 
                Mouse events:<br/>
                <input type="button" class="choixOutil" onclick="choixOutil('deplacement');cacherMenu()" value="Moving"/>
                <input type="button" class="choixOutil" onclick="choixOutil('tangente');cacherMenu()" value="Tangente"/>
                <input type="button" class="choixOutil" onclick="choixOutil('point');cacherMenu()" value="Point"/>
                <br/><br/>
                Derivative:<br/>
                <label for="checkDerivee"> f'(x) </label><input type="checkbox" id="checkDerivee" onclick="actualiserGraph()"/><label for="checkDerivee2"> f''(x) </label><input type="checkbox" id="checkDerivee2" onclick="actualiserGraph()"/>
                <br/><br/>
                Square under function:<br/>
                From <input value="-5" class="smallInput" id="aireG"/> to <input value="5" class="smallInput" id="aireD"/> <input type="button" onclick='calculerAire()' value="Calculate"/> <span id="outputAire"></span>
                <div style="float: right;"><label for="checkAire">Draw </label><input type="checkbox" id="checkAire" onclick="actualiserGraph()"/></div>
                <br/><br/>
                Calculate the point on the function:<br/>
                x=<input value="0" class="smallInput" id="inputX" onkeypress='if(event.keyCode==13) execute(document.getElementById("inputEq").value)'/>
                <input type="button" onclick='execute(document.getElementById("inputEq").value)' value="Estimate"/>
                <span id="outputX"></span>
                <br/><br/>
                Analysis of function: <br/>
                f(x) = <span id="etudeFct"></span> <input type="button" value="Start to analysis" onclick='etudier(document.getElementById("inputEq").value);afficherMenu("menuEtude")'/>
                <br/><br/>
                Display test:<br/>
                <input type="button" onclick='cacherMenu(); testXPM()' value="Test XPM"/><input type="button" onclick='cacherMenu(); testSVG()' value="Test SVG"/><input type="button" onclick='cacherMenu(); testCanvas()' value="Test Canvas"/>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!--Etude de fonction -->
        <div id="menuEtude" class="menu">
            <div class="contenuMenu">
                <h3>Analysis of function in the</h3>
                Set of definitions : <span id="etudeEDF">...</span> <br/>
                Parity : <span id="etudeParite">...</span> <br/>
                Zeros of functions : <span id="etudeZeros">...</span> <br/>
                <table>
                    <tr id="etudeSigne">
                        <td>Sign : ...</td>
                    </tr>
                </table>
                Asymptotes <br/>
                AH left : <span id="etudeAHG">...</span> <br/>
                AH right : <span id="etudeAHD">...</span> <br/>
                AV : <span id="etudeAV">...</span>
                <span id="etudeMin">...</span>
                <span id="etudeMax">...</span>
                <span id="etudeI">...</span> <br/><br/>
                <span class="texteSecondaire" style="font-size:10px;">Tool for analysis of function is not reliable on 100%. Don't forget check results of analysis before use it.</span>
            </div>
            <div class="barreBasMenu"><input type="button" onclick="etudier(document.getElementById('inputEq').value)" value="Actualize" style="position:relative;right:310px;"/> <input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!-- Fonctions multiples -->
        <div id="menuFonctions" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuFonctions")'>Functions</td>
                    <td onclick='afficherMenu("menuHistorique")'>History</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures">
                <em>Current</em><br/>
                f(x) = <span id="fonctionActuelle">x</span> <input type="button" value="+" onclick="ajouterFonction(document.getElementById('fonctionActuelle').innerHTML)"/>
                <br/><br/>
                <em>Additional</em><br/>
                <span id="fonctionsSupp">n/a ...</span>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!-- Historique -->
        <div id="menuHistorique" class="menu">
            <table class="ongletMenu">
                <tr>
                    <td onclick='afficherMenu("menuFonctions")'>Functions</td>
                    <td class="ongletMenuActuel" onclick='afficherMenu("menuHistorique")'>History</td>
                </tr>
            </table>
            <div class="contenuMenu avecBordures" id="divHistorique">
                <span id="spanHistorique"></span>
            </div>
            <div class="barreBasMenu"><input type="button" onclick='cacherMenu()' value="Cancel"/></div>
        </div>

        <!-- Couleur -->
        <div id="menuCouleur" class="menu">
            <div class="contenuMenu">
                <em>Choosing the color:</em> <br/><br/>
                <div id="colorSV" onmousemove="if(mouseDown==true){colorSV(event)}" onmousedown="colorSV(event); mouseDown = true" onmouseup="mouseDown = false">
                    <svg:svg width="100%" height="100%" version="1.1" xmlns="http://www.w3.org/2000/svg">
                        <svg:defs id="defs1">
                            <svg:linearGradient id="linearGradient1" x1="0%" y1="0%" x2="100%" y2="0%">
                                <svg:stop
                                    style="stop-color:#000000;stop-opacity:1;"
                                    offset="0%" />
                                <svg:stop
                                    style="stop-color:#000000;stop-opacity:0;"
                                    offset="100%" />
                            </svg:linearGradient>
                            <svg:linearGradient id="linearGradient2" x1="0%" y1="0%" x2="0%" y2="100%">
                                <svg:stop
                                    style="stop-color:#ffffff;stop-opacity:0;"
                                    offset="0%" />
                                <svg:stop
                                    style="stop-color:#ffffff;stop-opacity:1;"
                                    offset="100%" />
                            </svg:linearGradient>
                        </svg:defs>
                        <svg:rect
                            style="fill:url(#linearGradient2);fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
                            width="255"
                            height="255"
                            x="0"
                            y="0"
                            ry="0" />
                        <svg:rect
                            style="fill:url(#linearGradient1);fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
                            width="255"
                            height="255"
                            x="0"
                            y="0"
                            ry="0" />
                        <svg:line
                            id="ligneValeur"
                            x1="255"
                            y1="0"
                            x2="255"
                            y2="255"
                            style="stroke:rgb(0,0,0);stroke-width:2"/>
                        <svg:line
                            id="ligneSaturation"
                            x1="0"
                            y1="0"
                            x2="255"
                            y2="0"
                            style="stroke:rgb(0,0,0);stroke-width:2"/>
                    </svg:svg>
                </div>
                <div id="colorT" onmousemove="if(mouseDown==true){colorT(event)}" onmousedown="colorT(event); mouseDown = true" onmouseup="mouseDown = false">
                    <svg:svg width="100%" height="100%" version="1.1" xmlns="http://www.w3.org/2000/svg">
                        <svg:defs id="defs2">
                            <svg:linearGradient id="linearGradient3" x1="0%" y1="100%" x2="0%" y2="0%">
                                <svg:stop
                                    style="stop-color:#ff0000;stop-opacity:1;"
                                    offset="0%" />
                                <svg:stop
                                    style="stop-color:#ff00ff;stop-opacity:1;"
                                    offset="16.66%" />
                                <svg:stop
                                    style="stop-color:#0000ff;stop-opacity:1;"
                                    offset="33.33%" />
                                <svg:stop
                                    style="stop-color:#00ffff;stop-opacity:1;"
                                    offset="50%" />
                                <svg:stop
                                    style="stop-color:#00ff00;stop-opacity:1;"
                                    offset="66.66%" />
                                <svg:stop
                                    style="stop-color:#ffff00;stop-opacity:1;"
                                    offset="83.33%" />
                                <svg:stop
                                    style="stop-color:#ff0000;stop-opacity:1;"
                                    offset="100%" />
                            </svg:linearGradient>
                        </svg:defs>
                        <svg:rect
                            style="fill:url(#linearGradient3);fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
                            width="255"
                            height="255"
                            x="0"
                            y="0"
                            ry="0" />
                        <svg:line
                            id="ligneTeinte"
                            x1="0"
                            y1="0"
                            x2="20"
                            y2="0"
                            style="stroke:rgb(0,0,0);stroke-width:2"/>
                    </svg:svg>
                </div>
                <table id="colorValues">
                    <tr>
                        <td>Color: </td><td><input id="inputTeinte" class="smallInput" value="0" onkeypress=''/></td>
                    </tr><tr>
                        <td>Value: </td><td><input id="inputValeur" class="smallInput" value="0" onkeypress=''/></td>
                    </tr><tr>
                        <td>Saturation: </td><td><input id="inputSaturation" class="smallInput" value="0" onkeypress=''/></td>
                    </tr><tr>
                        <td>Red: </td><td><input id="inputRouge" class="smallInput" value="255" onkeypress=''/></td>
                    </tr><tr>
                        <td>Green: </td><td><input id="inputVert" class="smallInput" value="0" onkeypress=''/></td>
                    </tr><tr>
                        <td>Blue: </td><td><input id="inputBleu" class="smallInput" value="0" onkeypress=''/></td>
                    </tr><tr>
                        <td>Opacity: </td><td><input id="inputOpacity" class="smallInput" value="1" onkeypress=''/></td>
                    </tr><!--<tr>
                            <td><input id="inputCouleur" style="width: 70%" value="cyan" onkeypress='couleurFonction = this.value; if(event.keyCode==13) actualiserGraph()'/></td>
                    </tr>-->
                </table>
                <div id="apercuCouleur" title="New Color"></div><div id="apercuCouleur2" title="Old Color"></div>
            </div>
            <div class="barreBasMenu"><input type="button" onclick="if(idColor=='buttonColor'){cacherMenu()}else{afficherMenu('menuFonctions')}; actualiserGraph()" value="Check"/></div>
        </div>

        <!-- Erreurs Fonctions interdites -->
        <div id="fctInterdite" class="miniMenu">
            <br/>
            <h1>------- Error -------</h1>
            <br/>
            Impossible to draw the function ...
            <br/><br/>
            Error in expression or unexpected char: <br/>
            <span id="spanFctInterdite" style="font-style:italic;"></span>
            <br/><br/>
            <input type="button" onclick="cacherMenu()" value="Ok"/>
        </div>

        <!-- Autres erreurs -->
        <div id="erreurFct" class="miniMenu">
            <h1>------- Error -------</h1>
            Runtime error! Check your function and try to draw it again.
            <br/>
            Description and parameters various functions which are available to help.
            <br/><br/>
            <input type="button" onclick="afficherMenu('menuAide')" value="Help"/>
            <input type="button" onclick="cacherMenu()" value="Ok"/>
        </div>

        <!-- Menu des mises à jour -->
        <div id="mAj" class="menu">
            <h1>Updated</h1>
            Current version: <br/><span id="thisVersion"></span><br/>
            The last on-line version: <br/><span id="newVersion"></span><br/>
            <br/>
            This widget is available to using on web-site: <em>http://gyb.educanet2.ch/tm-widgets/yannick</em><br/>
            <br/>			
        </div>

        <!-- Erreur mise à jour -->
        <div id="erreurMaJ" class="miniMenu">
            <br/>
            <h1>------- Error -------</h1>
            <br/><br/>
            Update to latest version is not available because you already use the latest version.
            <br/><br/><br/>
            <input type="button" onclick="cacherMenu()" value="Ok"/>
        </div>

        <!-- Info options sauvegardées -->
        <div id="infoSauvegarde" class="alertMenu">
            <br/>
            <h1>Options saved!</h1>
            <br/>
            <input type="button" onclick="document.getElementById('infoSauvegarde').style.display = 'none'" value="Ok"/>
        </div>

        <!-- ..... Flèches de déplacement ..... -->
        <div class="flecheDeplacement" id="flecheHaut" onclick="if(fonction3D){zoom3D(1.25)}else{deplacerY(1)}" onmousemove="sourisMove(event)">▲</div>
        <div class="flecheDeplacement" id="flecheGauche" onclick="deplacerX(-1)" onmousemove="sourisMove(event)">◀</div>
        <div class="flecheDeplacement" id="flecheBas" onclick="if(fonction3D){zoom3D(0.8)}else{deplacerY(-1)}" onmousemove="sourisMove(event)">▼</div>
        <div class="flecheDeplacement" id="flecheDroite" onclick="deplacerX(1)" onmousemove="sourisMove(event)">▶</div>

        <!-- ..... Bas du Widget ..... -->
        <div class="info" id="info"></div>
        <div id="point">o</div>
        <div id="tangente"></div>

        <!-- .... Autres .... -->
        <div id="onglet3D" onclick="activer3D()">3D</div>
    </body>
    <!-- .............................. Widget réalisé par Yannick Vessaz .............................. -->
    <!-- .............................. e-mail: yannick.vessaz@gmail.com  .............................. -->
</html>