var NavMenu = {}

NavMenu.reset = function() {
	$('.navbar .subMenu').hide();
	$('.navbar .topItem').addClass('topItemClose');
	$('.navbar .topItem').hover(
		function() { NavMenu.hover( $(this) ); },
		function() { NavMenu.unHover( $(this) ); }
	);
};

NavMenu.hover = function( el ) {
	el.attr('class', el.attr('class').replace('topItemOpen', 'topItemOver' ) );
	el.attr('class', el.attr('class').replace('topItemClose', 'topItemCloseOver' ) );
};

NavMenu.unHover = function( el ) {
	el.attr('class', el.attr('class').replace('topItemOver', 'topItemOpen') );
	el.attr('class', el.attr('class').replace('topItemCloseOver', 'topItemClose') );
};

NavMenu.open = function( el ) {
	NavMenu.clearClasses( el )
	el.addClass('topItem', 'topItemOpen');
	el.parents('.mainDiv').find('.subMenu').show('fast'); 
};

NavMenu.close = function( el ) {
	NavMenu.clearClasses( el );
	el.addClass('topItemClose');
	el.parents('.mainDiv').find('.subMenu').hide('fast'); 
};

NavMenu.clearClasses = function( el ) {
	el.attr('class', '');
};


$(document).ready( function() {

	NavMenu.reset();

	$('.navbar .topItem').toggle( 
		function() { NavMenu.open( $(this) ); },
		function() { NavMenu.close( $(this) ); }
	);
});