function Fensterhoehe () {
  if (window.innerHeight) {
    return window.innerHeight;
  } else if (document.body && document.body.offsetHeight) {
    return document.body.offsetHeight;
  } else {
    return 0;
  }
}


function menu(){
var list = $$('#idList li');
list.each(function(element) {
	var fx = new Fx.Styles(element, {duration:200, wait:false});
 
	element.addEvent('mouseenter', function(){
		fx.start({
			'margin-left': 5,
			'margin-top': 5,
			'background-color': '#666',
			color: '#ff8'
		});
	});
 
	element.addEvent('mouseleave', function(){
		fx.start({
			'margin-left': 0,
			'margin-top': 0,
			'background-color': '#333',
			'color': '#888'
		});
	});
 
});
bg();
}

function bg() {

	var fx = function() {	
			if((counter+1) < picPaths.length) { 
				counter++; 
			} 
			else { 
				counter = 0; 
			} 
			document.getElementById("bgimage").src= picPaths[counter];				
	}

	var counter=0;
	var picPaths = new Array('images/bg/bg03.jpg','images/bg/bg01.jpg','images/bg/bg02.jpg');
	
	var pic = new Array ();
	init();
	
	function init() {
	   for(i=0; i<picPaths.length; i++) {
		  pic[i] = new Image();
		  pic[i].src = picPaths[i];
	   }	 
	   fx();
		periodical = fx.periodical(30000);	 
	}

	

	
}