function levelHeight()
{
	var divLeft = document.getElementById("left_container");
	var divRight = document.getElementById("right_container");
	var hLeft = divLeft.offsetHeight;
	var hRight = divRight.offsetHeight;

if (hLeft > hRight)
	divRight.style.height = hLeft + "px";
else
	divLeft.style.height = hRight + "px";

}