function placeFooterMain() 
	{ 
		var leftnav = document.getElementById('leftNavigation');
		var divMain = document.getElementById('mainContent');
		var mainFooter = document.getElementById('mainFooter');
		
		if(leftnav != null) {
			var navHeight = leftnav ? (leftnav.offsetTop + leftnav.offsetHeight + 10) : 0;
			
			if(leftnav.offsetHeight < divMain.offsetHeight) {
				leftnav.style.height = (divMain.offsetHeight + 10) + 'px';		
			}
		}
	}