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

/*var navbutton;


function changeNavpic() {
	return document.getElementById("navbutton");
	}
	
function findout(navbutton) {	
	(navbutton)? obj.className = 'navbutton':obj.className = '';
	
}

function trace() {
	return findout;
	pleasework.document.write.getElementByID(trace);
}*/

var image1 = new Image(); image1.src = '/images/newsite/nav/nav1_down.jpg';
var image2 = new Image(); image2.src = '/images/newsite/nav/nav2_down.jpg';
var image3 = new Image(); image3.src = '/images/newsite/nav/nav3_down.jpg';
var image4 = new Image(); image4.src = '/images/newsite/nav/nav4_down.jpg';
var image5 = new Image(); image5.src = '/images/newsite/nav/nav5_down.jpg';
var image6 = new Image(); image6.src = '/images/newsite/nav/nav6_down.jpg';

/*image1.onload = function() {
    // always called
    alert('image loaded');
};*/

function nav1Flip() {
	document.getElementById('navt1').style.background = 'url(/images/newsite/nav/nav1_down.jpg) no-repeat top left';
	//document.getElementById('test1').style.background = 'url(images/newsite/nav/nav1_up.gif) no-repeat top left';
}
function nav1FlipOut() {document.getElementById('navt1').style.background = 'url(/images/newsite/nav/nav1_up.gif) no-repeat top left';}
function nav2Flip() {document.getElementById('navt2').style.background = 'url(/images/newsite/nav/nav2_down.jpg) no-repeat top left';}
function nav2FlipOut() {document.getElementById('navt2').style.background = 'url(/images/newsite/nav/nav2_up.gif) no-repeat top left';}
function nav3Flip() {document.getElementById('navt3').style.background = 'url(/images/newsite/nav/nav3_down.jpg) no-repeat top left';}
function nav3FlipOut() {document.getElementById('navt3').style.background = 'url(/images/newsite/nav/nav3_up.gif) no-repeat top left';}
function nav4Flip() {document.getElementById('navt4').style.background = 'url(/images/newsite/nav/nav4_down.jpg) no-repeat top left';}
function nav4FlipOut() {document.getElementById('navt4').style.background = 'url(/images/newsite/nav/nav4_up.gif) no-repeat top left';}
function nav5Flip() {document.getElementById('navt5').style.background = 'url(/images/newsite/nav/nav5_down.jpg) no-repeat top left';}
function nav5FlipOut() {document.getElementById('navt5').style.background = 'url(/images/newsite/nav/nav5_up.gif) no-repeat top left';}
function nav6Flip() {document.getElementById('navt6').style.background = 'url(/images/newsite/nav/nav6_down.jpg) no-repeat top left';}
function nav6FlipOut() {document.getElementById('navt6').style.background = 'url(/images/newsite/nav/nav6_up.gif) no-repeat top left';}

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

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

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

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

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

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