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 contentHeight=
				document.getElementById('container').offsetHeight;
				var footerElement=document.getElementById('footer');
				var footerHeight=footerElement.offsetHeight;
			if (windowHeight-(contentHeight+footerHeight)>=0) {
				footerElement.style.position='relative';
				footerElement.style.top=
				(windowHeight-(contentHeight+footerHeight))+'px';
			}
			else {
				footerElement.style.position='static';
			}
		   }
		  }
	}

	window.onload = function() {
	setFooter();
	}
	window.onresize = function() {
	setFooter();
	}