$(document).ready(function(){
	$('.a_meny').click(function(){
	$('.sub:visible').slideUp('slow'); 
	$(this).next('.sub:hidden').slideDown('slow');
	});
});
$(document).ready(function()
{
	$(".sub").css('display','none');
        $(".a_meny").css('background' , 'url(/images/it/img/drop_down_menu_active.jpg)');  
        $(".b_meny_act").parent().slideDown('slow');
        $(".b_meny_act").parent('.sub').prev('.a_meny').css('background' , 'url(/images/it/img/drop_down_menu_active2.jpg)');         	
        $(".a_meny_act").css('background' , 'url(/images/it/img/drop_down_menu_active2.jpg)'); 
});