// JavaScript Document
$(document).ready(function() { 
	$(".nav_i").hover(
      function () {
        $(this).css("background-image","url(http://info.englishcentral.net/images/nav_up.jpg)");
      }, 
      function () {
        $(this).css("background-image","url(http://info.englishcentral.net/images/nav_bkg.jpg)");
      }
    );
	
	$("#left_nav ul li").hover(
      function () {
        $(this).css("background-color","#D7D7D7");
      }, 
      function () {
        $(this).css("background-color","#F8F8F8");
		$("#left_nav ul li ul li").css("background","none");
		$("#left_nav ul li ul li ul li").css("background","none");
      }
    );
	
});