var GROUP_ANIMATION = 180;

jQuery(document).ready(function() {
	var active = null;
	
	jQuery('.group_collection').click(function(e) {
		var menu = jQuery(this).next('.submenu');
		
		if( !menu.length || menu.hasClass('active') )
			return;
		
		jQuery('#groups .submenu.active').slideUp(GROUP_ANIMATION, function() { jQuery(this).removeClass('active') });
		menu.slideDown(GROUP_ANIMATION, function() { menu.addClass('active') });
	});
});