var mie=false;
var vmin=2;
var vmax=5;
<!--
if(navigator.appName.indexOf("Internet Explorer")!=-1)
{
if(parseInt(navigator.appVersion.substring(0,1))>=4) mie=true;
}
function cn_float_movechip(chipname)
{
  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-chip.clientWidth-20;
    pageY=window.document.body.scrollTop;
    pageH=window.document.body.offsetHeight - chip.clientHeight;
   
  }
  chip.xx=chip.xx+chip.vx;
  chip.yy=chip.yy+chip.vy;
  chip.vx+=Math.random()-0.5;
  chip.vy+=Math.random()-0.5;
  if(chip.vx>(vmax+vmin))  chip.vx=(vmax+vmin)*2-chip.vx;
  if((-vmax-vmin)>chip.vx) chip.vx=(-vmax-vmin)*2-chip.vx;
  if(chip.vy>(vmax+vmin))  chip.vy=(vmax+vmin)*2-chip.vy;
  if((-vmax-vmin)>chip.vy) chip.vy=(-vmax-vmin)*2-chip.vy;
  if(pageX>=chip.xx)
  {
   chip.xx=pageX;
   chip.vx=vmin+vmax*Math.random();
  }
  if(chip.xx>=pageX+pageW)
  {
   chip.xx=pageX+pageW;
   chip.vx=-vmin-vmax*Math.random();
  }
  if(pageY>=chip.yy)
  {
   chip.yy=pageY;
   chip.vy=vmin+vmax*Math.random();
  }
  if(chip.yy>=pageY+pageH)
  {
   chip.yy=pageY+pageH;
   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("cn_float_movechip('"+chip.named+"')",100);
}
function cn_float_stopme(chipname)
{
  eval("chip="+chipname);
  if(chip.timer1!=null)
  {
   clearTimeout(chip.timer1)
  }
}

//-->

function cn_float_outMove(divname,url)
{
document.write('<span id="'+divname+'" style="position:absolute"  >')
document.write(url);
document.write('</span>');
}
function cn_float_addMove(divname,url,x,y)
{
cn_float_outMove(divname,url);
eval("theDiv="+divname);
theDiv.named=divname;
theDiv.vx=vmin+vmax*Math.random();
theDiv.vy=vmin+vmax*Math.random();
theDiv.xx=x;
theDiv.yy=y;
theDiv.timer1=null;
cn_float_movechip(divname);
}
cn_float_addMove('pf46100',
'<a href="http://www.uicc-web.com/news_info.asp?News_ID=738&smallclassid=44" target="_blank"><img border="0" src="piaodong.jpg"></img></a><br /><center><a href="javascript:closediv(\'46100\')"></a></center>', 1, 300);
if(GetFloatCookie('pf')!=null)
{
if(GetFloatCookie('pf').indexOf('46100')!=-1)
{
  eval("document.all.pf"+46100+".style.display='none'")
}
}
function closediv(adiv)
{
eval("document.all.pf"+adiv+".style.display='none'")
var sName="pf"
var newDateObj = new Date()
newDateObj.setUTCHours(newDateObj.getUTCHours() + 4);
//document.cookie = sName + "="+ escape(adiv)+"," + GetFloatCookie("pf")+" ;expires="+newDateObj.toGMTString();
if( GetFloatCookie("pf")==null)
  SetFloatCookie(sName,escape(adiv),newDateObj,"/")
else
  SetFloatCookie(sName,escape(adiv)+"|"+GetFloatCookie("pf"),newDateObj,"/")
}

function GetFloatCookie(name)
{
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen) {
      var j = i + alen;
      if (document.cookie.substring(i, j) == arg) {
offset=j;
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1) endstr = document.cookie.length;
return unescape (document.cookie.substring(offset, endstr));
      }
      i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0) break;
   }
   return null;
}
function SetFloatCookie (name, value)
{
         var argv = SetFloatCookie.arguments;
         var argc = SetFloatCookie.arguments.length;
         var expires = (argc > 2) ? argv[2] : null;
         var path = (argc > 3) ? argv[3] : null;
         var domain = (argc > 4) ? argv[4] : null;
         var secure = (argc > 5) ? argv[5] : false;
         document.cookie = name + "=" + escape (value) +
         ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
         ((path == null) ? "" : ("; path=" + path)) +
         ((domain == null) ? "" : ("; domain=" + domain)) +
         ((secure == true) ? "; secure" : "");
}