function setDivHeight() {
	if (document.getElementById) {
		if (document.getElementById('help_center') && document.getElementById('help_right') && document.getElementById('help_left')){
			var divs = new Array(document.getElementById('help_center'), document.getElementById('help_right'), document.getElementById('help_left'));
			var maxHeight = 0;
			for (var i = 0; i < divs.length; i++) {
				if (divs[i].offsetHeight > maxHeight) maxHeight = divs[i].offsetHeight;
			}
			for (var i = 0; i < divs.length; i++) {
				divs[i].style.height = maxHeight + 'px';
				if (divs[i].offsetHeight > maxHeight) {
					divs[i].style.height = (maxHeight - (divs[i].offsetHeight - maxHeight)) + 'px';
				}
			}
			for (var i = 0; i < divs.length; i++) {
				divs[i].style.visibility = 'visible';
			}
		}
	}
}

/*window.onresize = function() {
	setDivHeight();
}*/