$(document).ready(function(){
    
	$('#hauptnavi a.navigation').mouseover(function(){
	    $('#hauptnavi a.navigation_active').toggleClass('active').addClass('navigation').removeClass('navigation_active');
	    
	    ShowSubnavi($(this).text());
	});
	
	$('#hauptnavi a.navigation').mouseout(function(){
	    $('#hauptnavi a.navigation.active').toggleClass('active').addClass('navigation_active').removeClass('navigation');
	    HideSubnavi();
	});
	
	// intitialize image galleries on page
	$("a[rel^='prettyPhoto']").prettyPhoto();
	
});

function ShowSubnavi(id) {
    HideSubnavi();
    
    $('#subNavActive').hide();
    $('#'+id).show();
    ShowSubnavi.id = id;
}

function HideSubnavi() {
    if(!ShowSubnavi.id) return;
    
    $('#'+ShowSubnavi.id).hide();
    $('#subNavActive').show();
}