function igualaralturas() {
			var verticalmenu = document.getElementById('verticalmenu');
			var menu_colorplano = document.getElementById('menu_colorplano');
			var principal = document.getElementById('principal');
			var innercontent = document.getElementById('innercontent');
			if ( verticalmenu.offsetHeight < principal.offsetHeight ) {
				menu_colorplano.style.paddingBottom = [(principal.offsetHeight-verticalmenu.offsetHeight)]+"px";
			}
			else {
				innercontent.style.paddingBottom = [(verticalmenu.offsetHeight-principal.offsetHeight)]+"px";
			}
		}