var scroller = null;
			var scroller2 = null;
			window.onload = function () {
				var el = document.getElementById("box_1");
				var list = el.getElementsByTagName("div");
				for (var i = 0; i < list.length; i++) {
					if (list[i].className.indexOf("Scroller-Container") > -1) {
						o = list[i];
					}
				}
				
				if(o.offsetHeight > 230 && startseite == false && gesamteHoehe == false) {
					scroller = new Scrolling.Scroller(el, 480, 230);
					document.getElementById("scroller_navi").style.display = "block";
				} else if(o.offsetHeight > 380 && startseite == false && gesamteHoehe == true) {
					scroller = new Scrolling.Scroller(el, 480, 380);
					document.getElementById("scroller_navi").style.display = "block";					
				}
				
				var el = document.getElementById("navi_layer_3");
				var list = el.getElementsByTagName("div");
				for (var i = 0; i < list.length; i++) {
					if (list[i].className.indexOf("Scroller-Container") > -1) {
						o = list[i];
					}
				}
				
				if(o.offsetHeight > 330) {
					scroller2 = new Scrolling.Scroller2(el, 130, 350);
					document.getElementById("scroller_navi_2_1").style.display = "block";
					document.getElementById("scroller_navi_2_2").style.display = "block";
				} 									
			};