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Thread: Help with javascript

  1. #1
    Join Date
    Nov 2012
    Posts
    2

    Help with javascript

    Hey guys, I'm somewhat new to javascript and I am working on a site and need it to fade from the main picture to a picture behind it after a few seconds of the page loading and then have it fade the top image back in. Here is my code currently but I can't get it to work so help me out please.

    <!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">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <link rel="shortcut icon" href="favicon.ico" />
    <link href="css/style.css" rel="stylesheet" type="text/css" /><script language="javascript">

    var element1 = document.getElementById("frontImage");
    var element2 = document.getElementById("backImage");

    function fadeOut() {
    for(i=0; i<1; i+=.001) {
    element1.style.opacity = (1-i);
    element2.style.opacity = i;
    }
    }

    function fadeIn() {
    for(i=0; i<1; i+=.001) {
    element1.style.opacity = i;
    element2.style.opacity = (1-i);
    }
    }

    function showButton() {
    setTimeout(fadeOut(), 5000);
    setTimeout(fadeIn(), 2000);
    }

    </script>
    </head>
    <body onLoad="showButton()">
    <div class="holder">
    <div class="header">
    <a href="index.php"><img src="images/title.png" /></a>
    </div>
    <div class="content">
    <div class="mainImage">
    <img id="frontImage" src="images/img1.jpg" style="opacity: 1;" />
    <img id="backImage" src="images/img2.jpg" style="opacity: 0;" />
    <a href="about.php"><div class="mainButton"></div></a>
    <a href="secretLogin.php"><div class="myButton"></div></a>
    </div>

    </div> <!-- close content -->
    </div> <!-- close holder -->
    </body>
    </html>

  2. #2
    Join Date
    Jun 2004
    Location
    Portsmouth UK
    Posts
    2,709
    Code:
    <!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">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    
    <link rel="shortcut icon" href="favicon.ico" />
    <link href="css/style.css" rel="stylesheet" type="text/css" />
    <style type="text/css">
    /*<![CDATA[*/
    .mainImage {
      position:relative;width:200px;height:150px;
    }
    
    .mainImage IMG{
      position:absolute;width:200px;height:150px;
    }
    
    /*]]>*/
    </style>
    </head>
    <body>
    <div class="holder">
    <div class="header">
    <a href="index.php"><img src="images/title.png" /></a>
    </div>
    <div class="content">
    <div class="mainImage">
    <img id="backImage" src="http://www.vicsjavascripts.org.uk/StdImages/Egypt6.jpg" />
    <img id="frontImage" src="http://www.vicsjavascripts.org.uk/StdImages/Egypt5.jpg" />
    <a href="about.php"><div class="mainButton"></div></a>
    <a href="secretLogin.php"><div class="myButton"></div></a>
    </div>
    
    </div> <!-- close content -->
    </div> <!-- close holder -->
    <script type="text/javascript">
    /*<![CDATA[*/
    
    function FadeOutIn(id,f,t,ms,hold){
     fade(document.getElementById(id),f,t,new Date(),ms,hold);
    }
    
    function fade(o,f,t,srt,mS,hold){
     var oop=this,ms=new Date().getTime()-srt,now=(t-f)/mS*ms+f;
     if (isFinite(now)){
      o.style.filter='alpha(opacity='+now+')';
      o.style.opacity=o.style.MozOpacity=o.style.WebkitOpacity=o.style.KhtmlOpacity=now/100-.001;
     }
     if (ms<mS){
      setTimeout(function(){ fade(o,f,t,srt,mS,hold); },10);
     }
     else {
      if (t==0){
       setTimeout(function(){ fade(document.getElementById(o.id),t,f,new Date(),mS); },hold);
      }
     }
    }
    
    FadeOutIn('frontImage',100,0,1000,3000);
    
    /*]]>*/
    </script></body>
    </html>
    Vic

    God loves you and will never love you less.

    http://www.vicsjavascripts.org/Home.htm
    If my post has been useful please donate to http://www.operationsmile.org.uk/

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HTML5 Development Center

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