topmenu = function() {
	$.preLoadImages("images/web/mnu_top_home_over.png", "images/web/mnu_top_agencja_over.png", "images/web/mnu_top_portfolio_over.png", "images/web/mnu_top_uslugi_over.png", "images/web/mnu_top_aktualnosci_over.png", "images/web/mnu_top_praca_over.png", "images/web/mnu_top_kontakt_over.png");	
	/*
	$("div#topmenu div").mouseover(function() {
		var classname = $(this).attr('class'); 
		$(this).addClass(classname+"_over");
		$(this).removeClass(classname);
	});
	$("div#topmenu div").mouseout(function() {
		var classname = $(this).attr('class'); 
		$(this).addClass(classname.substr(0, classname.length-5));
		$(this).removeClass(classname);
	});
	*/
	$("div#topmenu img").hover(
		function()
		{
			this.src = this.src.replace("_out","_over");
		},
		function()
		{
			this.src = this.src.replace("_over","_out");
		}
	);
}