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() {
	$('#navbar-header > li').bind('mouseover', jsddm_open)
	$('#navbar-header > li').bind('mouseout',  jsddm_timer)
	});

document.onclick = jsddm_close;	

<!-- CSS Display Toggle -->
function toggle(obj1, obj2) {
	var el1 = document.getElementById(obj1);
	if ( el1.style.display != "none" ) {
		el1.style.display = 'none';
		}
	else {
		el1.style.display = 'block';
		}
	if (obj2 != "") {
		var el2 = document.getElementById(obj2);
		el2.style.display = 'none';
		}
	}
<!-- added 083010 -->