var timeout         = 500;
var closetimer		= 0;
var closetimer1		= 0;
var ddmenuitem      = 0;
var ddmenuitem1      = 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.onclick = jsddm_close;


//////////////////////////////////////

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem1) ddmenuitem1.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem1 = document.getElementById(id);
	ddmenuitem1.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem1) ddmenuitem1.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer1 = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer1)
	{
		window.clearTimeout(closetimer1);
		closetimer1 = null;
	}
}

// close layer when click-out
document.onclick = mclose;