var t;
   	function custom_init()
    {
	    var ol = $("#habla_middle_div").next();
	    if (ol.length == 1)
	    {
			ol.hide();
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	    else
	    {    
	    t =setTimeout("custom_init()",100); 
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    }
    

$().ready(function(){ 
	$("div#preview_side").mouseover(function()
			   {
				   $(this).addClass("preview_side_mouse_over");
				   $(this).removeClass("preview_side_mouse_off");
				   }).mouseout(function(){
				   $(this).addClass("preview_side_mouse_off");
				   $(this).removeClass("preview_side_mouse_over");						   
					   });					   
	$("ul#numbers_list").hide();
	$("ul#arithmetic_list").hide();
	$("ul#algebra_list").hide();
	$("ul#geometry_list").hide();
	$("ul#word_problems_list").hide();
	$("ul#number_properties_list").hide();
	$("ul#probability_combinatorics_list").hide();
	
	$("#numbers_link").click(function(){
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		return false;
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	$("#arithmetic_link").click(function(){
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		return false;
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	$("#fractions_link").click(function(){
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	$("#algebra_link").click(function(){
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		return false;
	});//end of .click callback 
		
	$("#simultaneous_linear_equations_link").click(function(){
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		return false;
	});//end of .click callback 
	$("#equation_solving_cautions_link").click(function(){
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		return false;
	});//end of .click callback 
		
		
	$("#quadratic_equations_link").click(function(){
		$("ul#quadratic_equations_list").slideToggle("slow");
		return false;
	});//end of .click callback 
		
	$("#coordinates_link").click(function(){
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		return false;
	});//end of .click callback 
		
	$("#geometry_link").click(function(){
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	$("#circles_link").click(function(){
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	});//end of .click callback 
		
	$("#measurements_link").click(function(){
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		return false;
	});//end of .click callback 
		
	$("#word_problems_link").click(function(){
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		return false;
	});//end of .click callback 
		
	$("#rate_problems_link").click(function(){
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		return false;
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	$("#ratio_percentage_problems_link").click(function(){
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		return false;
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	$("#interest_rate_problems_link").click(function(){
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		return false;
	});//end of .click callback 		
	$("#number_properties_link").click(function(){
		$("ul#number_properties_list").slideToggle("slow");
		return false;
	});//end of .click callback 
	$("#probability_combinatorics_link").click(function(){
		$("ul#probability_combinatorics_list").slideToggle("slow");
		return false;
	});//end of .click callback 	
	$("#statistics_link").click(function(){
		$("ul#statistics_list").slideToggle("slow");
		return false;
	});//end of .click callback 	
	$("#combinatorics_link").click(function(){
		$("ul#combinatorics_list").slideToggle("slow");
		return false;
	});//end of .click callback 
	
var script_url = (document.location.protocol == 'https:' ? "https:" : "http:") + '//static.olark.com/js/wc.js';
    	    // use jQuery's getScript to get the script url, and on success, initialize
    	    jQuery.getScript(script_url, function(){
    	            wc_init(); // this runs on successful script get.
    	        }
    	    );
    	    t =setTimeout("custom_init()",100); 	
});//end of .ready callback