$("document").ready(function() {	
	// drop-down menus
	// sub-nav
	$(".nav_bar>li").hover(function() {
		// set top-level to here state
		$(this).children("a.main_nav").addClass("main_nav_hover");
		
		// hide form UI elements
		$("select, textarea").addClass("hidden");
		
		// show subnav
		$(this).children(".sub1").show();

	}, function() {
		// set top-level to default state
		$(this).children("a.main_nav").removeClass("main_nav_hover");
		
		// restore form UI elements
		$("select, textarea").removeClass("hidden");
		
		// hide subnav
		$(this).children(".sub1").hide();
	});
	
	// sub-sub-nav
	$(".sub>li").hover(function() {
		// set subnav to here state
		$(this).children("a").addClass("subnav_hover");
		// show subsubnav
		$(this).children(".subsub").show();
	}, function() {
		// set subnav to default state
		$(this).children("a").removeClass("subnav_hover");
		// css({background:"#FFF",color:"#333"});
		// hide subsubnav
		$(this).children(".subsub").hide();
	});	
});