function move_ad(Forum_ads_3,Forum_ads_4,Forum_ads_5,Forum_ads_6)
{
 document.write(\'<div id="jobads"

style="height:49px;left:178px;position:absolute;top:1237px;width:70px; z-index:1000">\');
 document.write(\'<a href="\' + Forum_ads_4 + \'" target="_blank" onmouseover=stopme

("jobads"); onmouseout=movechip("jobads");>\');
 document.write(\'<img src="\' + Forum_ads_3 + \'" border="0" width="\' + Forum_ads_5 +

\'" height="\' + Forum_ads_6 + \'"></a></div>\');
 jobads();
}

//右边固定广告
function StayCorner(){
 var DivObj = document.getElementById("Corner");
 if (DivObj){
 _divTop = parseInt(DivObj.style.top,10)
 _divLeft = parseInt(DivObj.style.left,10)
 _divHeight = parseInt(DivObj.offsetHeight,10)
 _divWidth = parseInt(DivObj.offsetWidth,10)
 if (navigator.userAgent.indexOf("Firefox") >= 0 || navigator.userAgent.indexOf

("Opera") >= 0) {
  var _docWidth = parseInt((document.body.clientWidth >

document.documentElement.clientWidth)?

document.body.clientWidth:document.documentElement.clientWidth);//document.body.clientWidth;
  var _docHeight = parseInt((document.body.clientHeight >

document.documentElement.clientHeight)?

document.documentElement.clientHeight:document.body.clientHeight);
 }else{
  var _docWidth = parseInt((document.documentElement.clientWidth == 0)?

document.body.clientWidth:document.documentElement.clientWidth);
  var _docHeight = parseInt((document.documentElement.clientHeight == 0)?

document.body.clientHeight:document.documentElement.clientHeight);
 }

 DivObj.style.top = parseInt((document.body.scrollTop?

document.body.scrollTop:document.documentElement.scrollTop),10) + _docHeight - _divHeight-20

+"px";;
 DivObj.style.left = _docWidth - _divWidth-20 +"px";
 }
//window.status="y:"+DivObj.style.top+";x:"+DivObj.style.left;
setTimeout(\'StayCorner()\', 50)
}

function fix_up_ad(sgImg,sgWidth,sgHeight,sgLink){
var sgDump=null;
document.write(\'<DIV ID="Corner" STYLE="position:absolute; width:\'+sgWidth+\';

height:\'+sgHeight+\'; z-index:9; filter: Alpha(Opacity=70)"><A href="\'+sgLink+\'"

target=_blank><IMG src="\'+sgImg+\'" BORDER=0 WIDTH="\'+sgWidth+\'"

HEIGHT="\'+sgHeight+\'"></A></DIV>\');

sgDump = StayCorner()
}

这是第二种
<script language="javascript" type="text/javascript">
var brOK=false;
var mie=false;
var vmin=2;
var vmax=5;
var vr=3;
var timer1;
var jobads;

function movechip(chipname)
{
 var obj = document.getElementById(chipname);
  eval("chip="+chipname);
  if(!mie)
  {
   pageX=window.pageXOffset;
   pageW=window.innerWidth;
   pageY=window.pageYOffset;
   pageH=window.innerHeight;
  }
  else
  {
   pageX=parseInt(window.document.body.scrollLeft?

window.document.body.scrollLeft:window.document.documentElement.scrollLeft);
   pageY=parseInt(window.document.body.scrollTop?

window.document.body.scrollTop:window.document.documentElement.scrollTop);
   pageW=parseInt(window.document.body.offsetWidth-8);
   pageH=parseInt(window.document.body.offsetHeight);   
  }
  
  //window.status="y:"+pageW+";x:"+pageX;
  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>=pageW-chip.w)
  {
   chip.xx=pageW-chip.w;
   chip.vx=-vmin-vmax*Math.random();
  }
  //if(chip.xx>=680)
  //{
  // chip.xx=chip.xx-20;
  // chip.vx=-vmin-vmax*Math.random();
  //}
  if(chip.yy<=pageY)
  {
   chip.yy=pageY;
   chip.vy=vmin+vmax*Math.random();
  }
  if(chip.yy>=pageH-chip.h)
  {
   chip.yy=pageH-chip.h;
   chip.vy=-vmin-vmax*Math.random();
  }
  
  obj.style.top = chip.yy+\'px\';
  obj.style.left = chip.xx+\'px\';
  chip.timer1=setTimeout("movechip(\'"+chip.named+"\')",80);

}

function stopme(chipname)
{
 //if(brOK)
 //{
  eval("chip="+chipname);
  if(chip.timer1!=null)
  {
   clearTimeout(chip.timer1)
  }
 //}
}

function jobads()
{
 if(navigator.appName.indexOf("Internet Explorer")!=-1||navigator.userAgent.indexOf

("Firefox") >= 0)
 {
  //if(parseInt(navigator.appVersion.substring(0,1))>=4)

brOK=navigator.javaEnabled();
  mie=true;
 }
 if(navigator.appName.indexOf("Netscape")!=-1)
 {
  if(parseInt(navigator.appVersion.substring(0,1))>=4)

brOK=navigator.javaEnabled();
 }
 jobads.named="jobads";
 jobads.vx=vmin+vmax*Math.random();
 jobads.vy=vmin+vmax*Math.random();
 jobads.w=1;
 jobads.h=1;
 jobads.xx=0;
 jobads.yy=0;
 jobads.timer1=null;
 movechip("jobads");
}

function move_ad(Forum_ads_3,Forum_ads_4,Forum_ads_5,Forum_ads_6)
{
 document.write(\'<div id="jobads"

style="height:49px;left:178px;position:absolute;top:1237px;width:70px; z-index:1000">\');
 document.write(\'<a href="\' + Forum_ads_4 + \'" target="_blank" onmouseover=stopme

("jobads"); onmouseout=movechip("jobads");>\');
 document.write(\'<img src="\' + Forum_ads_3 + \'" border="0" width="\' + Forum_ads_5 +

\'" height="\' + Forum_ads_6 + \'"></a></div>\');
 jobads();
}

//右边固定广告
function StayCorner(){
 var DivObj = document.getElementById("Corner");
 if (DivObj){
 _divTop = parseInt(DivObj.style.top,10)
 _divLeft = parseInt(DivObj.style.left,10)
 _divHeight = parseInt(DivObj.offsetHeight,10)
 _divWidth = parseInt(DivObj.offsetWidth,10)
 if (navigator.userAgent.indexOf("Firefox") >= 0 || navigator.userAgent.indexOf

("Opera") >= 0) {
  var _docWidth = parseInt((document.body.clientWidth >

document.documentElement.clientWidth)?

document.body.clientWidth:document.documentElement.clientWidth);//document.body.clientWidth;
  var _docHeight = parseInt((document.body.clientHeight >

document.documentElement.clientHeight)?

document.documentElement.clientHeight:document.body.clientHeight);
 }else{
  var _docWidth = parseInt((document.documentElement.clientWidth == 0)?

document.body.clientWidth:document.documentElement.clientWidth);
  var _docHeight = parseInt((document.documentElement.clientHeight == 0)?

document.body.clientHeight:document.documentElement.clientHeight);
 }

 DivObj.style.top = parseInt((document.body.scrollTop?

document.body.scrollTop:document.documentElement.scrollTop),10) + _docHeight - _divHeight-20

+"px";;
 DivObj.style.left = _docWidth - _divWidth-20 +"px";
 }
//window.status="y:"+DivObj.style.top+";x:"+DivObj.style.left;
setTimeout(\'StayCorner()\', 50)
}

function fix_up_ad(sgImg,sgWidth,sgHeight,sgLink){
var sgDump=null;
document.write(\'<DIV ID="Corner" STYLE="position:absolute; width:\'+sgWidth+\';

height:\'+sgHeight+\'; z-index:9; filter: Alpha(Opacity=70)"><A href="\'+sgLink+\'"

target=_blank><IMG src="\'+sgImg+\'" BORDER=0 WIDTH="\'+sgWidth+\'"

HEIGHT="\'+sgHeight+\'"></A></DIV>\');

sgDump = StayCorner()
}
  move_ad