$(document).ready( function() {

	var main_content_height = $("#main_content").height();
	var left_content_height = $("#left_content").height();
	
	if ( main_content_height > left_content_height )
	{
		
		$("#left_content").css("height", main_content_height);
		
	}
	else
	{
		
		$("#main_content").css("height", left_content_height);
		
	}
	
	$("#navi_top > li").corner("10px tr tl");
	
});