//----------------------------------------------------------fly--
//----------------------------------------------------------fly--
//----------------------------------------------------------fly--
//----------------------------------------------------------fly--
//----------------------------------------------------------fly--
        var vmin=2;
        var vmax=5;
        var vr=2;
        var timer1;

        function iecompattest(){
        return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
        }

        function Chip(chipname,width,height){
         this.named=chipname;
         this.vx=vmin+vmax*Math.random();
         this.vy=vmin+vmax*Math.random();
         this.w=width+20;
         this.h=height;
         this.xx=0;
         this.yy=0;
         this.timer1=null;
        }

        function movechip(chipname){
        if (document.getElementById){
        eval("chip="+chipname);
           if (window.innerWidth || window.opera){
		         pageX=window.pageXOffset;
             pageW=window.innerWidth-40;
             pageY=window.pageYOffset;
             pageH=window.innerHeight-20;
            }
           else if (document.body){
		         pageX=iecompattest().scrollLeft;
             pageW=iecompattest().offsetWidth-40;
             pageY=iecompattest().scrollTop;
             pageH=iecompattest().offsetHeight-20;
            } 

           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();
             }

            document.getElementById(chip.named).style.left=chip.xx+"px";
            document.getElementById(chip.named).style.top=chip.yy+"px";
    
           chip.timer1=setTimeout("movechip('"+chip.named+"')",100);
          }
        }
        
          //Step 1: Define unique variable names depending on number of flying images (ie:1):
          var flyimage1

          function pagestart(){
          //Step 2: Using the same variable names as 1), add or delete more of the below lines (60=width, height=80 of image):
           flyimage1=new Chip("flyimage1",200,170);


          //Step 3: Using the same variable names as 1), add or delete more of the below lines:
          movechip("flyimage1");

          }

          if (window.addEventListener)
          window.addEventListener("load", pagestart, false)
          else if (window.attachEvent)
          window.attachEvent("onload", pagestart)
          else if (document.getElementById)
          window.onload=pagestart