var remember = new Array();
var remember2 = new Array();
var checkIt;

var DHTML = (document.getElementById || document.all || document.layers);

function show(name,lvl,obj)
{
	if (!DHTML) return;
	checkUserInput();
	if (remember[lvl] && remember[lvl] == name) return;
	if (remember[lvl])
	{
		closeAll(lvl);
	}
	if (name)
	{
		var x = getObj(name);
		x.visibility = 'visible';
	}
	remember[lvl] = name;
	if (obj.parentNode) y = obj.parentNode;
	else if (obj.parentElement) y = obj.parentElement;
	else return;
	if (y.className) return;
	y.className = 'over';
	if (remember2[lvl]) remember2[lvl].className = '';
	remember2[lvl] = y;
}

function closeAll(lvl)
{
	for (i=remember.length - 1;i>=lvl;i--)
	{
		if (remember[i]) //IE4 Mac
		{
			var x = getObj(remember[i]);
			x.visibility = 'hidden';
		}
		remember[i] = null;
		if (remember2[i])
		{
			remember2[i].className = '';
			remember2[i] = null;
		}
	}

}

function checkUserInput()
{
	if (checkIt) clearTimeout(checkIt);
	checkIt = setTimeout('closeAll(1)',4000);
}

function getObj(name)
{
  if (document.getElementById)
  {
    return document.getElementById(name).style;
  }
  else if (document.all)
  {
    return document.all[name].style;
  }
  else if (document.layers)
  {
    return document.layers[name];
  }
  else return false;
}





userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}




var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		M1nav1_over = newImage("menu_images/M1nav1_over.gif");
		M1nav2_over = newImage("menu_images/M1nav2_over.gif");
		M1nav3_over = newImage("menu_images/M1nav3_over.gif");
		M1nav4_over = newImage("menu_images/M1nav4_over.gif");
		M1nav5_over = newImage("menu_images/M1nav5_over.gif");
		
		M2nav1_over = newImage("menu_images/M2nav1_over.gif");
		M2nav2_over = newImage("menu_images/M2nav2_over.gif");
		M2nav3_over = newImage("menu_images/M2nav3_over.gif");
		M2nav4_over = newImage("menu_images/M2nav4_over.gif");
		M2nav5_over = newImage("menu_images/M2nav5_over.gif");
		M2nav6_over = newImage("menu_images/M2nav6_over.gif");
		M2nav5_over = newImage("menu_images/M2nav7_over.gif");
		
		M3nav1_over = newImage("menu_images/M3nav1_over.gif");
		M3nav2_over = newImage("menu_images/M3nav2_over.gif");
		M3nav3_over = newImage("menu_images/M3nav3_over.gif");
		M3nav4_over = newImage("menu_images/M3nav4_over.gif");
		M3nav5_over = newImage("menu_images/M3nav5_over.gif");

		M3nav4_over = newImage("menu_images/M3nav4_over.gif");
		
		products_over = newImage("menu_images/products_over.gif");
		industry_over = newImage("menu_images/industry_over.gif");
		services_over = newImage("menu_images/services_over.gif");

		home_over = newImage("images/home_on.gif");
		about_over = newImage("images/about_on.gif");
		contact_over = newImage("images/contact_on.gif");
		recruit_over = newImage("images/recruit_on.gif");
		sponsor_over = newImage("images/sponsored_on.gif");
		login_over = newImage("images/login_on.gif");
		sitemap_over = newImage("images/sitemap_on.gif");
		preloadFlag = true;
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}