//Javascript cho Slider
    $(window).load(function() {
        $('#slider').nivoSlider({
            effect: 'random',
            slices:8,
            animSpeed:900, //Slide transition speed
            pauseTime:3000,
            startSlide:0, //Set starting Slide (0 index)
            directionNav:true //Next & Prev
        });
    });
    
    


function topmenu(){
$(" #top-nav ul.children ").css({display: "none"}); // Opera Fix
$(" #top-nav li").hover(function(){
		$(this).find('ul.children:first').css({visibility: "visible",display: "none"}).show(200);
		},function(){
		$(this).find('ul.children:first').css({visibility: "hidden"});
		});
}

 $(document).ready(function(){
	topmenu();
});