var timeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;
var hoverbar = 0;

function jsddm_open() {  
    jsddm_canceltimer();
   	jsddm_close();
   	hoverbar = $(this).find('.hover-bar').css('visibility', 'visible');
   	ddmenuitem = $(this).find('ul').css('visibility', 'visible');
}

function jsddm_close() {  
    if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
    if(hoverbar) hoverbar.css('visibility', 'hidden');
}

function jsddm_timer() {  
    closetimer = window.setTimeout(jsddm_close, timeout);
}

function jsddm_canceltimer() {  
	if(closetimer) {  
    	window.clearTimeout(closetimer);
      	closetimer = null;
    }
}

$(document).ready(function() {  
    $('#site-menu > li').bind('mouseover', jsddm_open)
    $('#site-menu > li').bind('mouseout',  jsddm_timer)
});

document.onclick = jsddm_close;