var timeout    = 50;
var closetimer = 0;
var ddmenuitem = 0;

function ddmenu_open(){
	ddmenu_canceltimer();
   	ddmenu_close();
   	ddmenuitem = $(this).find('ul').css('visibility', 'visible');
   	$('li.sel ul').each(function(){$(this).css('visibility', 'hidden')});
}

function ddmenu_close(){ 
	if ( $('#ddmenu') != null ) {
	if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
	$('li.sel ul').each(function(){$(this).css('visibility', 'visible')});
	}
}

function ddmenu_timer(){
	closetimer = window.setTimeout(ddmenu_close, timeout);
}

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

$(document).ready(function(){
	if ( $('#ddmenu') != null ) {
	$('#ddmenu > :not(.sel)').mouseover(ddmenu_open)
    $('#ddmenu > :not(.sel)').mouseout(ddmenu_timer)
    ddmenu_close()
	}
});

document.onclick = ddmenu_close;