var timeout = 400;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open(){
	jsddm_canceltimer();
	jsddm_close();
	ddmenuitem = $(this).find('ul').eq(0).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(){
	$('.jsddm > li').bind('mouseover', jsddm_open);
	$('.jsddm > li').bind('mouseout',  jsddm_timer);

	if($.browser.msie && $.browser.version!=8){
		drop_adjust = $('.jsddm-son').width()/2 * -1;
		$('.jsddm-son').css({
			'border' : '1px solid #fff',
			'margin-top' : 8,
			'margin-left' : drop_adjust
		});
	}else{
		$('.jsddm-son').css({
			'margin-top' : 8,
			'margin-left' : '-0.5em'
		});
	}
});

document.onclick = jsddm_close;