// JavaScript Document

function getObjHeight(obj){
	return (obj.offsetHeight) ? obj.offsetHeight : false;
}

function setObjDynHeight(){
	var lCol = document.getElementById("left");
	var rCol = document.getElementById("right");
	var lH = false;
	var rH = false;
	while(!lH)
	{
		lH = getObjHeight(lCol);
		rH = getObjHeight(rCol);
	}
	if(lH >= rH){
		lCol.style.height = lH + "px";
		rCol.style.height = lH + "px";
	}
	else{
		lCol.style.height = rH + "px";
		rCol.style.height = rH + "px";
	}
}

window.onload = setObjDynHeight;