var brOK=false;
var mie=false;
var vmin=2;
var vmax=5;
var vr=3;
var timer1;
var collection;
var moveobject;




function movechip(chipname)
{
	if(brOK)
	{
		//eval("chip="+chipname);
		var chip = document.getElementById(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.xx>=1024)
		{
			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 RunMove(id)
{
	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();
	}
	//winzheng_51web.named=id;
	moveobject= document.getElementById(id);
	moveobject.named=id;
	moveobject.vx=vmin+vmax*Math.random();
	moveobject.vy=vmin+vmax*Math.random();
	moveobject.w=1;
	moveobject.h=1;
	moveobject.xx=Math.random()*1024;
	moveobject.yy=Math.random()*800;
	moveobject.timer1=null;
	movechip(id);
}


function randomfloaters() {
  this.items = [];
  this.addItem = function(id,x,y,content)
      {
     document.write('<DIV id='+id+' onmouseover=stopme("'+id+'"); onmouseout=movechip("'+id+'"); style="Z-INDEX: 1000; POSITION: absolute;width:120px; height:90px;left:'+(typeof(x)=='string'?eval(x):x)+';top:'+(typeof(y)=='string'?eval(y):y)+'">'+content+'</DIV>');
     var newItem    = {};
     newItem.object   = document.getElementById(id);
     newItem.x    = x;
     newItem.y    = y;

     this.items[this.items.length]  = newItem;
      }
  this.play = function()
      {
        collection    = this.items
        play();
      }
  }
  
  function play()
  {
      
        for(var i=0;i<collection.length;i++)
        {
            RunMove(collection[i].object.id);
        }
        
   }


var theRandomFloaters  = new randomfloaters();