$(document).ready(function() {
    $("a.light").lightBox();
    $("#top_menu li").hover(function(){
        parent_left = document.getElementById("top_div").offsetLeft;
        left = $(this).position().left;
        height = $(this).children("ul").height()+31;
		var licz = 0;
		$.each($(this).children("ul").find("li"), function() {
			licz++;
		});
		//height = (23*licz)+31;
		height = (25*licz);   // by JP
        diff = left-parent_left+145;
        $(this).children("ul").css('left', diff);
        $(this).children("ul").css('top', -height+'px');
        $(this).children("ul").css('display', 'block');
        $(this).children("ul").attr('height', height+'px');
        $(this).children("ul").attr('min-height', height+'px');
		//alert(height);
    }, function() {
        $(this).children("ul").css('display', 'none');
    });
});