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

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

function jsddm_close() {
	if(ddmenuitem)
		ddmenuitem.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() {
	$('#jsddm > li').bind('mouseover', jsddm_open)
   			$('#jsddm > li').bind('mouseout',  jsddm_timer)
});

document.onclick = jsddm_close;