var bild=new Array(4);
bild[1]=new Image();
bild[1].src="start/fliege2.gif";
bild[2]=new Image();
bild[2].src="start/fliege1.gif";
bild[3]=new Image();
bild[3].src="start/fliege3.gif";
bild[4]=new Image();
bild[4].src="start/fliege4.gif";
var y;
var x;
var q=1;
var w=0;
var i=0;
var yMax;
var xMax;
function Init(){
	if(document.getElementById){
     	if (navigator.appName.indexOf("Explorer") != -1) {
    		xMax=document.documentElement.offsetWidth;
    		yMax=document.documentElement.offsetHeight;
  		} else {
          xMax=window.innerWidth;
          yMax=window.innerHeight;
     }

          x=(xMax/2)-170;
          y=document.getElementById('logo').offsetTop+50;
          xMax-=55;
          yMax-=55;
     	document.getElementsByTagName('body')[0].innerHTML+='<img src=\"start\/fliege1.gif\" id=\"fliege\" \/>';
     	document.getElementById('fliege').onmouseover=start;
		document.getElementById('fliege').style.top=y+'px';
		document.getElementById('fliege').style.left=x+'px';
	}
}

function start(){
	i=0;
	move();
}

function move()
{
	if(i<100) {
		i++;
		document.getElementById('fliege').style.top=y+'px';
		document.getElementById('fliege').style.left=x+'px';

	if(i==20||i==40||i==60||i==80){
     	q=Math.ceil(Math.random()*2);
          w=(Math.floor(Math.random()*2))*2
     }
	if(y>=yMax) {q=2;}
	if(y<=0) {q=1;}
	if(x>=xMax) {w=2;}
	if(x<=0) {w=0;}
	if(q==1) {y=y+5;}
	if(q==2) {y=y-5;}
	if(w==0) {x=x+5;}
	if(w==2) {x=x-5;}

	document.getElementById('fliege').src=bild[w+q].src;
	setTimeout('move()',5);
     }
}
window.onload=Init;