function getWindowHeight() {
	if (typeof(window.innerHeight) == 'number') { return window.innerHeight; }
	else if (document.documentElement && document.documentElement.clientHeight) { return document.documentElement.clientHeight; }
	else if (document.body && document.body.clientHeight) { return document.body.clientHeight; }
}

		function setFooter() {
		//alert('setFooter')
			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					// Get height of tallest column (Main or Nav)
					var MainHeight = 0
					if (document.getElementById('Main')) {
					  MainHeight = document.getElementById('Main').offsetHeight + document.getElementById('Main').offsetTop;
					}
					else if (document.getElementById('Main2')) {
					  MainHeight = document.getElementById('Main2').offsetHeight + document.getElementById('Main2').offsetTop;
					}
					
					var tempHeight = 0
					if (document.getElementById('Sidebar')) {
					  tempHeight = document.getElementById('Sidebar').offsetHeight + document.getElementById('Sidebar').offsetTop;
					}
					
					
					if (tempHeight > MainHeight) {
						MainHeight = tempHeight
					}
					var footerElement = document.getElementById('Footer');
					var footerHeight  = footerElement.offsetHeight + 0; // Add footer padding-top
					
					if (windowHeight - (MainHeight + footerHeight) >= 0) {
						footerElement.style.position = 'absolute';
						footerElement.style.top = (windowHeight - footerHeight) + 'px';
						footerElement.style.display = "block";
					}
					else {
						footerElement.style.position = 'absolute';
						footerElement.style.top = (MainHeight) + 'px';
						footerElement.style.display = "block";
						
						var Trace = document.getElementById('Trace')
						if (Trace) {							
							Trace.style.position = 'absolute';							
							Trace.style.top = (MainHeight) + 'px';
						}
					//	footerElement.style.position = 'static';
					}
					
				}
			}
			footerElement.style.display="block";
		}
		window.onload = function() {setFooter(); }
		window.onresize = function() { setFooter(); }