// JScript 文件
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-100;                   //file://100数值修改，应该图片的大小加上浏览器边框，这样就能折回
   pageW=window.document.body.offsetWidth-8;
   pageY=window.document.body.scrollTop;
   pageH=window.document.body.offsetHeight;
  }
  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.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>=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+"')",80);
 }
}



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


function chinazads()
{
 if(navigator.appName.indexOf("Internet Explorer")!=-1)
 {
  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();
 }
 chinazads.named="chinazads";
 chinazads.vx=vmin+vmax*Math.random();
 chinazads.vy=vmin+vmax*Math.random();
 chinazads.w=1;
 chinazads.h=1;
 chinazads.xx=0;
 chinazads.yy=0;
 chinazads.timer1=null;
 movechip("chinazads");
}