在网页中飘来飘去的图片（加到页面代码里即可）
<script LANGUAGE="JavaScript">var brOK=false;
var mie=false;
var aver=parseInt(navigator.appVersion.substring(0,1));
var aname=navigator.appName;
function checkbrOK()
{if(aname.indexOf("Internet Explorer")!=-1)
{if(aver>=4) brOK=navigator.javaEnabled();
mie=true;
}
if(aname.indexOf("Netscape")!=-1)
{if(aver>=4) brOK=navigator.javaEnabled();}
}
var vmin=2;
var vmax=5;
var vr=0.02;
var timer1;
function Chip(chipname,width,height)
{this.named=chipname;
this.vx=vmin+vmax*Math.random();
this.vy=vmin+vmax*Math.random();
this.w=width;
this.h=height;
this.xx=0;
this.yy=0;
this.timer1=null;
}
function movechip(chipname)
{
if(brOK)
{eval("chip="+chipname);
if(!mie)
{pageX=window.pageXOffset;
pageW=window.innerWidth;
pageY=window.pageYOffset;
pageH=window.innerHeight;
}
else
{pageX=window.document.body.scrollLeft;
pageW=window.document.body.offsetWidth-22;
pageY=window.document.body.scrollTop;
pageH=window.document.body.offsetHeight-34;
}
chip.xx=chip.xx+chip.vx;
chip.yy=chip.yy+chip.vy;
chip.vx+=vr*(Math.random()-0.5);
chip.vy+=vr*(Math.random()-0.5);
if(chip.vx>(vmax+vmin))chip.vx=(vmax+vmin)*2-chip.vx;
if(chip.vx<(-vmax-vmin)) chip.vx=(-vmax-vmin)*2-chip.vx;
if(chip.vy>(vmax+vmin))chip.vy=(vmax+vmin)*2-chip.vy;
if(chip.vy<(-vmax-vmin)) chip.vy=(-vmax-vmin)*2-chip.vy;
if(chip.xx<=pageX)
{chip.xx=pageX;
chip.vx=vmin+vmax*Math.random();
}
if(chip.xx>=pageX+pageW-chip.w)
{chip.xx=pageX+pageW-chip.w;
chip.vx=-vmin-vmax*Math.random();
}
if(chip.yy<=pageY)
{chip.yy=pageY;
chip.vy=vmin+vmax*Math.random();
}
if(chip.yy>=pageY+pageH-chip.h)
{chip.yy=pageY+pageH-chip.h;
chip.vy=-vmin-vmax*Math.random();
}
if(!mie)
{eval('document.'+chip.named+'.top ='+chip.yy);
eval('document.'+chip.named+'.left='+chip.xx);
}
else
{eval('document.all.'+chip.named+'.style.pixelLeft='+chip.xx);
eval('document.all.'+chip.named+'.style.pixelTop ='+chip.yy);
}
chip.timer1=setTimeout("movechip('"+chip.named+"')",140);
}
}
function hide(chipname){
if(brOK){
eval("chip="+chipname);
if(!mie)
eval('document.'+chip.named+'.visibility ='+"'hide'");
else
eval('document.all.'+chip.named+'.style.visibility ='+"'hidden'");
}
}
function stopme(chipname)
{if(brOK)
{//alert(chipname)
eval("chip="+chipname);
if(chip.timer1!=null)
{clearTimeout(chip.timer1)}
}
}
var chip1;
function pagestart()
{checkbrOK();
chip1=new Chip("chip1",117,75);
if(brOK)
{ movechip("chip1");
}
}
//if(brOK) {stopme('chip1');}
</script>
<html>
<body>
<div id="chip1"
style="height: 105; position: absolute; visibility: visible; width: 140; left: 180; top: 157">
<table border="0" cellPadding="4" cellSpacing="0" class="bd" width="60">
<TBODY>
<tr>
<td align="middle" class="bg2"><a class="prs1" href="http://" target="_blank"><img
border="0" class="bd" src="picture/jyxw.jpg" width="80" height="77"></a></td>
</tr>
</TBODY>
</table>
</div><script event="onload" for="window" language="JavaScript">
pagestart();
</script>
把以上代码加入到网页里
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