<!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" />
<script src="jquery.js" type="text/javascript"></script>
<title>js 实现图片预加载 加载完后执行动作</title>
</head>
<style type="text/css">
<!--
*html{
margin:0;
padding:0;
border:0;
}
body{border:1px solid #f3f3f3; background:#fefefe}
div#loading{
950px;
height:265px;
line-height:265px;
overflow:hidden;
position:relative;
text-align:center;
}
div#loading p{
position:static;
+position:absolute;
top:50%;
vertical-align:middle;
}
/*div#loading p img{
position:static;
+position:relative;
top:-50%;left:-50%;
vertical-align:middle
} */
-->
</style>
<div id="loading">
<p><img src="http://www.baidu.com/img/baidu_logo.gif" id="myimg" /></p>
</div>
<script>
imgarr[1]="http://image3.ituji.cn/ituji/content/2012/07/19/20/127659867016020120719202818/3427751613_1342701178.jpg";
var Browser=new Object();
Browser.userAgent=window.navigator.userAgent.toLowerCase();
Browser.ie=/msie/.test(Browser.userAgent);
Browser.Moz=/gecko/.test(Browser.userAgent);
function SImage(url)
{
var img = new Image();
if(Browser.ie){
img.onreadystatechange =function(){
if(img.readyState=="complete"||img.readyState=="loaded"){
$("#myimg").attr("src",url);
}
}
}else if(Browser.Moz){
img.onload=function(){
if(img.complete==true){
$("#myimg").attr("src",url);
}
}
}
img.src=url;
}
icall(1);
function icall(v)
{
SImage(""+imgarr[v]+"");
$("#myimg").attr("src","loading.gif");
/*if(v<c){
SImage(""+imgarr[v]+"",icall);
}else if(v>=c){
i=0;
//location.replace('banner.html');//这里写自己的动作吧，
}*/
}
</script>
</body>
</html>