columns = function() {
	//left listing  resize
	leftC = document.getElementById('lc');
	if(leftC){
		rightC = document.getElementById('rc');
		if(leftC.offsetHeight > rightC.offsetHeight){
			rightC.style.height = leftC.offsetHeight+"px";
		}
	}
}

if (window.addEventListener)
window.addEventListener("load", columns, false);
else if (window.attachEvent)
window.attachEvent("onload", columns);
else
window.onload=columns;