<!--
		function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setFooter() {
			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var footerElement = document.getElementById('footer');
					var footerHeight  = footerElement.offsetHeight;
					var headerElement = document.getElementById('header');
					var headerHeight  = headerElement.offsetHeight;
					var contentHeight = document.getElementById('content').offsetHeight;
					var rightColumnHeight = document.getElementById('rightColumn').offsetHeight+headerHeight+5;
					var leftColumnHeight = document.getElementById('leftColumn').offsetHeight+headerHeight+5;
					//hvis content i midten er størst					
					if ((contentHeight>=rightColumnHeight)&&(contentHeight>=leftColumnHeight)) {
						if(windowHeight - (contentHeight + footerHeight) >= 0){
						footerElement.style.top = (windowHeight - (contentHeight + footerHeight)) + 'px';
							}else{
							footerElement.style.top = 0 + 'px';	
							}
						//alert('footer: '+footerHeight+'header: '+headerHeight+'right: '+rightColumnHeight+' left: '+leftColumnHeight+' content: '+contentHeight);
					}//hvis højre kolonne er størst
					else if ((rightColumnHeight>contentHeight)&&(rightColumnHeight>=leftColumnHeight)) {
						var deltaright = rightColumnHeight-contentHeight;
						if(windowHeight - (rightColumnHeight + footerHeight) >= 0){
						//alert('footer: '+footerHeight+'header: '+headerHeight+'right: '+rightColumnHeight+' left: '+leftColumnHeight+' content: '+contentHeight);
						footerElement.style.top = (windowHeight + deltaright - (rightColumnHeight + footerHeight)) + 'px';	
							}else{
							footerElement.style.top = deltaright + 'px';
							
							}
						
						//alert('footer: '+footerHeight+'header: '+headerHeight+'right: '+rightColumnHeight+' left: '+leftColumnHeight+' content: '+contentHeight);
					}//hvis ventre kolonne er størst
					else if ((leftColumnHeight>contentHeight)&&(leftColumnHeight>rightColumnHeight)) {
						//alert('left');
						var deltaleft = leftColumnHeight-contentHeight;
						if(windowHeight - (rightColumnHeight + footerHeight) >= 0){
						footerElement.style.top = (windowHeight + deltaleft - (leftColumnHeight + footerHeight)) + 'px';	
							}else{
							footerElement.style.top = deltaleft + 'px';
							
							}
						
					}else{
							footerElement.style.top = 0 + 'px';	
							//alert('kurt');
					}
				}
			}
		}
		window.onload = function() {
			setFooter();
		}
		window.onresize = function() {
			setFooter();
		}
		//-->