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Thread: Saving bgColor to a Cookie

  1. #1
    Join Date
    Sep 2010
    Location
    Québec, Canada
    Posts
    11

    Question Saving bgColor to a Cookie

    I'm working on my last JavaScript project for school and have encountered a few problems. My teacher seems to be MIA so any help would be greatly appreciated. The two issues that I'm having with this script are:
    - The cookies only work in Internet Explorer;
    - I can't figure out the code to save the 3rd text input field as a cookie that will automatically change the background color to the user's fav color.

    Thoughts?

    Code:
    <html>
    <head>
    <title>Exercice 07</title>
    
    <script language="javascript">
    
    <!-- Début
    
    //Valider formulaire
    function valider(){
    
    var bgColor = document.testform.Couleur.value;
        document.bgColor = bgColor;
    
    if (document.testform.Prenom.value=="") {
    alert("S.V.P. indiquez votre prénom!")
    return false;
    }
    if (document.testform.Nom.value=="") {
    alert("S.V.P. indiquez votre nom de famille!")
    return false;
    }
    if (document.testform.Couleur.value=="") {
    alert("S.V.P. indiquez votre couleur préféré!")
    return false;
    }
    
    var inputField = document.getElementById("Couleur").value.substr(1);
    if (!/^[a-f0-9]{3}$|^[a-f0-9]{6}$/i.test(inputField))
    {
    	alert("Vous devez indiquez une valeur hexidécimale!");
    }
    
    return true;
    
    }
    
    function set_it() {
    
      var inputFieldP = document.getElementById("Prenom").value
      var inputFieldN = document.getElementById("Nom").value
      var thetext="greeting=Bonjour, "+inputFieldP +" " +inputFieldN +",";
      var expdate=";expires=Mon, 30 Mar 2020 13:00:00 UTC";
      var newtext=escape(thetext);
      newtex+=expdate;
      document.cookie=newtext
      
    }
    
    function read_it() {
    
     var mycookie =document.cookie;
     var fixed_cookie = unescape(mycookie);
     var thepairs = fixed_cookie.split(";");
     var namepairs= thepairs[0].split("=");
     var greet= namepairs[1];
     document.write(greet);
     }
    
    if (document.cookie) {
      read_it();
    }
    else {
      set_it();
    }
    
    // Fin -->
    </script>
    
    </head>
    <body>
    
    <script language="javascript">
      //Message de bienvenue en fonction de l'heure
      var heure=new Date().getHours()
      var msg=""
      if (heure<=6) {msg="bonne nuit"}
      if (heure>6 && heure<=12) {msg="bon matin"}
      if (heure>12 && heure<=18) {msg="bonne après-midi"}
      if (heure>18 && heure<=24) {msg="bonne soirée"}
      
      document.write(msg +"!");  
      
    </script>
    <h2>Pr&eacute;f&eacute;rences usager:</h2>
    <form name="testform" >
    Prénom:&nbsp;<input size="30" id="Prenom" value="Visiteur" onblur="valider()" type="text"><br>
    Nom:&nbsp;<input size="30" id="Nom" value="Inconnu" valider()" type="text"><br>
    Couleur préféré:&nbsp;<input size="30" id="Couleur" value="#FFFFFF" onblur="valider()" maxlength="7" type="text"><br>
    <input value="Sauvegarder" type="button" onClick="set_it()">
    <input value="Visualiser" type="button" onClick="window.location.reload()">
    </form>
    </body>
    </html>

  2. #2
    Join Date
    Jun 2007
    Posts
    667
    Quote Originally Posted by Carmel819 View Post
    I'm working on my last JavaScript project for school and have encountered a few problems. My teacher seems to be MIA so any help would be greatly appreciated. The two issues that I'm having with this script are:
    - The cookies only work in Internet Explorer;
    - I can't figure out the code to save the 3rd text input field as a cookie that will automatically change the background color to the user's fav color.
    It's much easier if you use dedicated cookie functions:

    Code:
    function readCookie( cName )
    {
     var v;
       
     return ( document.cookie !== undefined ) 
            ?  decodeURIComponent ( (v = document.cookie.match( "(^|\\s|;)"+cName+"=([^;]+)(;|\\s|$)*" ) ) ? v[2] : "" ) 
            : "";  
    }
      
    function setCookie(name, value, days, path) 
    {
     var expires = "", dt = new Date();
    
     if( days )
      expires = "; expires=" + new Date( dt.setDate( dt.getDate() + days ) ).toGMTString();
     
     document.cookie = name + "=" + encodeURIComponent( value ) + expires + (path ? "; path=" + path : "" );
     
     return readCookie( cName );
    }

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