//change _height and min-height value in the css file to manage the height

function set_height() {

	if (document.getElementById) {
		var lm = document.getElementById('leftmenu');
		var lh = document.getElementById('leftContent');
		var rh = document.getElementById('rightContent');
		var ch = document.getElementById('content');

		var ldiff = lm.offsetHeight - lh.offsetHeight;
		var lsum = lm.offsetHeight + lh.offsetHeight;


		if (lm.offsetHeight) {
			if (lsum > ch.offsetHeight) {
				if (lsum > rh.offsetHeight)
					lh.style.height = lsum + "px";
				else
					lh.style.height = (rh.offsetHeight - lm.offsetHeight) + "px";
			}
			else {
				if (ch.offsetHeight > rh.offsetHeight)
					lh.style.height = (ch.offsetHeight - lm.offsetHeight) + "px";
				else if (ch.offsetHeight < rh.offsetHeight)
					lh.style.height = (rh.offsetHeight - lm.offsetHeight) + "px";
				else
					lh.style.height = (ch.offsetHeight - lm.offsetHeight) + "px";
			}
		}
		else if (ch.offsetHeight) {
//			if (ch.offsetHeight > lm.offsetHeight) {
//				ch.style.height = ch.offsetHeight + "px";
//			}
//			alert ("ch here");
		}
		else if (rh.offsetHeight) {
//			if (rh.offsetHeight > lm.offsetHeight) {
//				rh.style.height = rh.offsetHeight +"px";
//			}
//			alert ("rh here");
		}


	}


}