/* 
Based on the tutorial and code found at 
http://javascript-array.com/scripts/jquery_simple_drop_down_menu/ 
*/
var timeout=500;var closetimer=0;var ddmenuitem=0;function nav_open(){nav_canceltimer();nav_close();ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}function nav_close(){if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}function nav_timer(){closetimer = window.setTimeout(nav_close, timeout);}function nav_canceltimer(){if(closetimer){window.clearTimeout(closetimer);closetimer = null;}}
$(document).ready(function(){$('.nav > li').bind('mouseover', nav_open);$('.nav > li').bind('mouseout',  nav_timer);});document.onclick = nav_close;