var oldHandler = window['onload'];
window['onload'] = function() {
	if(typeof(oldHandler) == 'function') {
		oldHandler();
	}
	setHeight();
};
function setHeight() {
	var menu = document.getElementById('menu');
	var menul = document.getElementById('menugradl');
	var menur = document.getElementById('menugradr');
	var t = 0;
	t = menu.offsetHeight;
	menul.style.top = Math.ceil((t/2)-50) + 'px';
	menur.style.top = Math.ceil((t/2)-50) + 'px';
	var b1 = document.getElementById('leftsidebar');
	var b2 = document.getElementById('content');
	var b3 = document.getElementById('rightsidebar');
	var h1 = b1.offsetHeight;
	var h2 = b2.offsetHeight;
	var h3 = b3.offsetHeight;
	if (h1 > h2) {
		b2.style.height = (h1 - 10) + 'px';
		b1.style.height = (h1 - 10) + 'px';
		b3.style.height = (h1 - 10) + 'px';
	}else{
		b2.style.height = (h2 - 10) + 'px';
		b1.style.height = (h2 - 10) + 'px';
		b3.style.height = (h2 - 10) + 'px';
	}
}