// JavaScript Document
function openWindow(URLtoOpen, windowName, windowFeatures) {

newWindow=window.open(URLtoOpen, windowName, windowFeatures)

}



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=2; 

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-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.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+"')",100);

  }

}





function stopme(chipname) 

{if(brOK)

  {//alert(chipname)

   eval("chip="+chipname);

   if(chip.timer1!=null)

    {clearTimeout(chip.timer1)}

  }

}



var chip1;

var chip2;



function pagestart() 

{checkbrOK(); 

chip1=new Chip("chip1",60,80);

chip2=new Chip("chip2",90,80);



if(brOK) 

{ 

movechip("chip1"); 

movechip("chip2"); 

}

}