$(document).ready(function() {

	$('.top_menu ul li ul').css('display', 'none');

    $(".top_menu ul li").hover(function(){
    
        $(this).addClass("hover");
        $('ul:first',this).css('display', 'block');
    
    }, function(){
    
        $(this).removeClass("hover");
        $('ul:first',this).css('display', 'none');
    
    });
  
});

function equalHeight(group) {
 tallest = 0;
 group.each(function() {
 thisHeight = $(this).height();
 if(thisHeight > tallest) {
 tallest = thisHeight;
 }
 });
 group.height(tallest);
}
$(window).load(function() {
 equalHeight($(".equal"));

});