// JavaScript Document
$(document).ready(function() {
	var l=$("#main_content .ad_left");
	var r=$("#main_content .ad_right");
	var lh=$("#main_content .ad_left").height();
	var rh=$("#main_content .ad_right").height();
	(rh>lh) ? l.css({"height":rh+"px","padding-bottom":"0"}) : "";
});