/**
 * Stolen from http://javascript-array.com/scripts/jquery_simple_drop_down_menu/
 */
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;
	}
}