function getHeight() {
			var divl = document.getElementById('leftcolumn').offsetHeight;
			var divr = document.getElementById('rightcolumn').offsetHeight;
			if(divl > divr)
				divh=divl;
			else
				divh=divr;
			divh = divh+10;
			document.getElementById('container').style.height = divh + 'px'; 
		}