function dropDownNav(page) {
	document.getElementById(page).style.display = "block";
}

function hideDownNav(e) {
	if (document.getElementById('over_tickets') == null)
		return true;
	var obj = document.getElementById('tickets');
	if(getStyle(obj, 'display')=='block') {
		var target = (e && e.target) || (event && event.srcElement);
		var obj2 = document.getElementById('over_tickets');
		if(target!=obj && target!=obj2) { obj.style.display = "none" }
	}
	//var obj = document.getElementById('calendars');
	//if(getStyle(obj, 'display')=='block') {
	//	var target = (e && e.target) || (event && event.srcElement);
	//	var obj2 = document.getElementById('over_calendars');
	//	if(target!=obj && target!=obj2) { obj.style.display = "none" }
	//}
}

function getStyle(oElm, strCssRule){
	var strValue = "";
	if(document.defaultView && document.defaultView.getComputedStyle){
		strValue = document.defaultView.getComputedStyle(oElm, "").getPropertyValue(strCssRule);
	}
	else if(oElm.currentStyle){
		strCssRule = strCssRule.replace(/\-(\w)/g, function (strMatch, p1){
			return p1.toUpperCase();
		});
		strValue = oElm.currentStyle[strCssRule];
	}
	return strValue;
}

document.onclick=hideDownNav;