$(document).ready(function() {

	// show selected sub-menue
	var rex 	= new RegExp('\\/[^\\/]+\\.\\w+($|\\?)');
	var match = rex.exec(location.pathname);
	var file 	= match[0].substring(1);
	
	var act = $('div#menu a[href$="' + file + location.search + '"]')
	act.attr('class', 'selected');
	
	var el 	= act.parent().parent();
	while(el.get(0).tagName == 'UL') {
		
		el.css('display', 'block');
		el = el.parent().parent();
	}
	
	// aktivate menue scroll
	setTimeout(function() {
		
		$('div#menu ul ul > li')
			.mouseenter(
				function () {
					$(this).children('ul').slideDown('slow');
				}
			).mouseleave(
				function () {
					$(this).children('ul').stop(true, true).slideUp('slow');
				}
			);
		}, 2000); // wait 2 sec.
});