纯JS实现图片幻灯片效果，兼容IE7,firefox

javascript幻灯片原理 js幻灯片的各种特效_html

<!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" cnotallow="text/html; charset=gb2312" /> 
<title>纯JS实现图片幻灯片效果，兼容IE7,firefox - svnhost.cn </title> 
</head> 
<body> 
<script> 
var widths=282; 
var heights=164; 
var counts=6; 
img1=new Image ();img1.src='http://www.yy152.com/images/logo.gif'; 
img2=new Image ();img2.src='http://www.yy152.com/images/svn_work.gif'; 
img3=new Image ();img3.src='http://www.yy152.com/images/logo.gif'; 
img4=new Image ();img4.src='http://www.yy152.com/images/svn_work.gif'; 
img5=new Image ();img5.src='http://www.yy152.com/images/logo.gif'; 
img6=new Image ();img6.src='http://www.yy152.com/images/svn_work.gif'; 
url1=new Image ();url1.src='http://www.yy152.com'; 
url2=new Image ();url2.src='http://www.yy152.com'; 
url3=new Image ();url3.src='http://www.yy152.com'; 
url4=new Image ();url4.src='http://www.yy152.com; 
url5=new Image ();url5.src='http://www.yy152.com'; 
url6=new Image ();url6.src='http://www.yy152.com'; 
var nn=1; 
var key=0; 
function change_img() 
{if(key==0)
{key=1;} 
else if(document.all) 
{document.getElementById("pic").filters[0].Apply();document.getElementById("pic").filters[0].Play(duratinotallow=2);} 
eval（'document.getElementById("pic").src=img'+nn+'.src'); 
eval（'document.getElementById("url").href=url'+nn+'.src'); 
for (var i=1;i <=counts;i++)
{document.getElementById("xxjdjj"+i).className='axx';} 
document.getElementById("xxjdjj"+nn).className='bxx'; 
nn++;if(nn>counts)
{nn=1;} 
tt=setTimeout('change_img()',4000);} 
function changeimg(n)
{nn=n;window.clearInterval(tt);change_img();} 
document.write(' <style>'); 
document.write('.axx{padding:1px 7px;border-left:#cccccc 1px solid;}'); 
document.write('a.axx:link,a.axx:visited{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#666;}'); 
document.write('a.axx:active,a.axx:hover{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#999;}'); 
document.write('.bxx{padding:1px 7px;border-left:#cccccc 1px solid;}'); 
document.write('a.bxx:link,a.bxx:visited{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#D34600;}'); 
document.write('a.bxx:active,a.bxx:hover{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#D34600;}'); 
document.write(' </style>'); 
document.write(' <div style="width:'+widths+'px;height:'+heights+'px;overflow:hidden;text-overflow:clip;">'); 
document.write(' <div> <a id="url"> <img id="pic" style="border:0px;filter:progid:dximagetransform.microsoft.wipe(gradientsize=1.0,wipestyle=4, motinotallow=forward)" width='+widths+' height='+heights+' /> </a> </div>'); 
document.write(' <div style="filter:alpha(style=1,opacity=10,finishOpacity=80);background: #888888;width:100%-2px;text-align:right;top:-12px;position:relative;margin:1px;height:12px;padding:0px;margin:0px;border:0px;">'); 
for(var i=1;i <counts+1;i++)
{document.write(' <a href="javascript:changeimg('+i+');" id="xxjdjj'+i+'" class="axx" target="_self">'+i+' </a>');} 
document.write(' </div> </div>'); 
change_img(); 
</script> 
</body> 
</html>