/**
* Swenson Dropdown Javascript
*
*
* @created: 2/21/09
* @modified: 2/26/09
* @author: http://javascript-array.com/scripts/jquery_simple_drop_down_menu/
**/

var nav_root = '#main_nav';
var timeout = 500;
var closetimer = 0;
var ddmenuitem = 0;


$(document).ready(function() { 
							$(nav_root + ' > li').bind('mouseover', jsddm_open);
							$(nav_root + ' > li').bind('mouseout',  jsddm_timer);	
							
						   });

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.onclick = jsddm_close;