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;
 pageY=window.document.body.scrollTop;
//pageW=window.document.body.offsetWidth-22;
//pageH=window.document.body.offsetHeight-34;
pageW=window.document.body.clientWidth;
pageH=window.document.body.clientHeight;
} 

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); 
}
}
}

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 close_float_ad(){
    document.all.chip1.style.visibility='hidden';
}
function stopme(){
  if(brOK) {
    if(chip1.timer1!=null){
      clearInterval(chip1.timer1);
      chip1.timer1=null;
    }
  }
}

function startme(){
  if(brOK){
    if (chip1.timer1==null){
      chip1.timer1=setInterval("movechip('"+chip1.named+"')",140);
    }
  }
}

var chip1;
function pagestart(w,h)
{checkbrOK(); 
chip1=new Chip("chip1",w,h);
if(brOK) 
{ chip1.timer1=setInterval("movechip('"+chip1.named+"')",140);
}
}

//if(brOK) {stopme('chip1');}