/************************************************************************************************  
  Browserabfrage:
************************************************************************************************/
function browserobj() {
	this.ns4=document.layers&&!document.getElementById;
	this.ns6=document.getElementById&&!document.all;
	this.ie4=document.all;
	this.opr=navigator.userAgent.indexOf("Opera")+1;
	
	this.ms = document.all;
	this.ns = document.layers;
	this.dom = document.getElementById;
}
browserobj.prototype.innerWidth = function () {
	if(this.ns || this.opr) return window.innerWidth;
	else return document.body.offsetWidth;
}

var Browser = new browserobj();

/************************************************************************************************  
  Variablenbestimmung:
************************************************************************************************/
	
	var layers;
	var st;
	var farbe;
	
	if (Browser.ie4 || Browser.ie5 || Browser.ie6 || Browser.ms || Browser.dom){
	 
		layers = document.all;
		st = "style.";
		bc = "backgroundColor"
	}
	
	if (Browser.ns4 || Browser.ns){
	 
		layers = document.layers;
		st = "";
		bc = "bgColor"
		
	}

/************************************************************************************************  
  Inhalt zentrieren:
************************************************************************************************/
	
function mittig() {
	if(Browser.ie4 || Browser.ie5 || Browser.ie6 || Browser.ms || Browser.dom){
	  document.all.layer0.style.left=document.all.DieseDatei.offsetWidth/2-391;
		document.all.layer0.style.visibility="visible";
	}
	if(Browser.ns4){
	  document.layers.layer0.left= window.innerWidth/2-391;
		document.layers.layer0.visibility="show";
	}
  if(Browser.ns6 || Browser.ns){
     document.getElementById('layer0').style.left=window.innerWidth/2-391;
     document.getElementById('layer0').style.visibility="visible";
	}
}

function refr() {
	if(Browser.ie4 || Browser.ie5 || Browser.ie6) document.all.layer0.style.left=document.all.DieseDatei.offsetWidth/2-391;
	if(Browser.ns4) document.location.href = document.location.href;
  if(Browser.ns6) document.location.href = document.location.href;
}


/************************************************************************************************  
  MouseOver:
************************************************************************************************/
  function fw(name,fb){
	  if (Browser.ie4 || Browser.ie5 || Browser.ie6) eval("layers[name]."+st+bc+"="+"fb"); 
		if (Browser.ns4 ) eval("document.layers['layer0'].document.layers[name].bgColor=fb");
    if (Browser.ns6 || Browser.dom || Browser.ns || Browser.ms) eval("document.getElementById(name).style.backgroundColor=fb");
	}

////////////////////////////////////////////////////////////////////////////////////////////////////