var timeout         = 0;
var closetimer		= 0;
var ddmenuitem      = 0;

function submenu_open(){
	submenu_canceltimer();
	submenu_close();
	ddmenuitem = jQuery(this).find('ul').eq(0).css('visibility', 'visible');
}

function submenu_close(){
	if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
}

function submenu_timer()
{
	closetimer = window.setTimeout(submenu_close, timeout);
}

function submenu_canceltimer(){
	if(closetimer){
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

jQuery(document).ready(function($){
	jQuery('#myajaxmenu > li').bind('mouseover', submenu_open);
	jQuery('#myajaxmenu > li').bind('mouseout',  submenu_timer);
});

document.onclick = submenu_close;