$(window).load(function() {
	$('.menuLeftBlock ul.level1 li ul.level2 li ul.level3').hide();
	$('.menuLeftBlock ul.level1 li ul.level2').hide();
	
	$('.menuLeftBlock ul.selected li ul.selected').show();
	$('.menuLeftBlock ul.selected li ul.selected li.selected ul.level3').show();
	
	$('.menuLeftBlock ul.level1 div').each(function(i) {
		var el = $(this);
		var className = el.attr('class');
		if (className.indexOf('plus') != -1 || className.indexOf('minus') != -1) {
			el.html(el.html() + '<img src="' + imgPath + '" />');
		}
	});
	
	$('.menuLeftBlock ul.level1 div img').click(function() {
		var el = $(this).parent('div');
		var className = el.attr('class');
		if (className.indexOf('plus') != -1) {
			var newClassName = 'minus';
			if (className.indexOf('selected') != -1) {
				newClassName += ' selected';
			}
			el.attr('class',newClassName);
			var parentLi = el.parent('li');
			var ulL2 = parentLi.children('ul.level2');
			ulL2.slideDown('slow');
		}
		else if (className.indexOf('minus') != -1) {
			var el = $(this).parent('div');
			var parentLi = el.parent('li');
			var ulL2 = parentLi.children('ul.level2');
			ulL2.slideUp('slow',function() {
				var parentLi = $(this).parent('li');
				var itemDiv = $(parentLi.children('div'));
				var className = itemDiv.attr('class');
				var newClassName = 'plus';
				if (className.indexOf('selected') != -1) {
					newClassName += ' selected';
				}
				itemDiv.attr('class',newClassName);
			});
		}
	});
});