// JavaScript Document
var oldHandler = window['onload'];
	window['onload'] = function() {
	   if(typeof(oldHandler) == 'function') {
	      oldHandler();
	   }
	   setHeight();
	};
	function setHeight() {
		var b1 = document.getElementById('left');
		var b2 = document.getElementById('main');
		var b3 = document.getElementById('right');
		if (!b1 || !b2 || !b3) return;
		var h1 = b1.offsetHeight;
		var h2 = b2.offsetHeight;
		var h3 = b3.offsetHeight;
		if (h1 > h2 && h1 > h3) {
			b3.style.height = (h1) + 'px';
			b2.style.height = (h1) + 'px';
			b1.style.height = (h1) + 'px';
		}else if (h1 < h2 && h3 < h2) {
			b1.style.height = (h2) + 'px';
			b2.style.height = (h2) + 'px';
			b3.style.height = (h2) + 'px';
		}else if (h1 < h3 && h2 < h3) {
			b1.style.height = (h3) + 'px';
			b2.style.height = (h3) + 'px';
			b3.style.height = (h3) + 'px';
		}
		
	}