/*function footer_nav_versetzen(){
		document.getElementById('footer_nav').style.bottom='0px';
	}*/
	
	function nav_change(id){
		var a_bild;
		var b_bild;
		var c_bild;
		a_bild = document.getElementById(id).src;
		b_bild = a_bild.split("__");
		//alert(b_bild[0] +"___"+ b_bild[1]);
		if(b_bild[1] == "01.gif"){
			c_bild = b_bild[0] + "__02.gif";
		}else if(b_bild[1] == "02.gif"){
			c_bild = b_bild[0]+ "__01.gif";
		}else{
			c_bild = a_bild;
		}
		//alert(c_bild);
		document.getElementById(id).src=c_bild;
		
	}
	
	/*function show_hide_subnav(id,status){
		var pos_x = 0;
		var pos_y = 0;
		var obj_width = 0;
		var obj;
               
		if(status == 'in'){
			if(document.getElementById(id)){
				obj = document.getElementById(id);
				pos_x = parseInt(obj.offsetLeft) +"px";
				pos_y = (parseInt(obj.offsetTop) + parseInt(obj.offsetHeight) - 6) +"px";
				obj_width = parseInt(obj.offsetWidth) +"px";
				//obj = obj.offsetParent;
				//alert(obj.offsetParent.tagName);
				//alert( pos_x +"___"+pos_y);
				if(document.getElementById("subnav_" + id)){
					document.getElementById("subnav_" + id).style.left=pos_x;
					document.getElementById("subnav_" + id).style.top=pos_y;
					document.getElementById("subnav_" + id).style.display="inline";
					//document.getElementById("subnav_" + id).style.width=obj_width;
				}
			}
		}else{
			document.getElementById("subnav_" + id).style.display="none";
		}
	}*/
	
	function show_hide_subnav(id,status){
		var pos_x = 0;
		var pos_y = 0;
		var obj_width = 0;
		var obj;
               
		if(status == 'in'){
			if(document.getElementById(id)){
				document.getElementById("subnav_" + id).style.display="block";
			}
		}else{
			document.getElementById("subnav_" + id).style.display="none";
		}
	}