function cnum(value)
{
    return ( (new Number(value)) + 0);
}

function setHeight()
{
	var objLeftTop;
	var objLeftBottom;
	var objContentTd;
	
	objLeftTop = document.getElementById("topLeft");
	objLeftBottom = document.getElementById("leftBottom");
	objContentTd = document.getElementById("content");
	
	//size of menu + bottom
	var menuOffset = objLeftTop.offsetHeight + objLeftBottom.offsetHeight;
	var contentOffset = objContentTd.offsetHeight;
	
	//menu is taller than content
	if (menuOffset > contentOffset)
		objContentTd.style.height = menuOffset - 47 + "px";
	
	//alert(menuOffset + ": " + contentOffset);
	
	if ((contentOffset+100) > menuOffset)
		objLeftTop.style.height = objContentTd.offsetHeight - 276 + "px";
	
}