$(document).ready(function ()
{
	
	    var timeout = 500;
        var closetimer = 0;
        var ddmenuitem = 0;
        function sbvddm_open() {
            sbvddm_canceltimer();
            sbvddm_close();
            ddmenuitem = $(this).find('ul').css('visibility', 'visible').fadeIn("slow");
        }
        function sbvddm_close()
        { if (ddmenuitem) ddmenuitem.css('visibility', 'hidden'); }

        function sbvddm_timer()
        { closetimer = window.setTimeout(sbvddm_close, timeout); }

        function sbvddm_canceltimer() {
            if (closetimer) {
                window.clearTimeout(closetimer);
                closetimer = null;
            }
        }
        $('.topmenu > li').bind('mouseover', sbvddm_open)
        $('.topmenu > li').bind('mouseout', sbvddm_timer)
        document.onclick = sbvddm_close;
    
});