// JavaScript Document
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(){  
	$('#prinav > li').bind('mouseover', jsddm_open);
	$('#prinav > li').bind('mouseout',  jsddm_timer)
});

document.onclick = jsddm_close;