// Handles rollover images for NN3+ and IE4+
var loaded = new Array();
var F_menuIsEntered = false;
var F_menuIsCreated = false;

function F_loadRollover(image,imageName,menu) {
	if (image && image.src &&
		(null == image.out || typeof(image.out) == typeof(void(0)))) {
		s = image.src;
		image.out = new Image();
		image.out.src = s;
		image.over = new Image();
		if (imageName.lastIndexOf('/') >= 0 || imageName.lastIndexOf('\\') >= 0) {
			s = imageName;
		} else {
			i = s.lastIndexOf('/');
			if (i<0) i = s.lastIndexOf('\\');
			if (i<0) { s = imageName; }
			else	 { s = s.substring(0,i+1) + imageName; }
		}
		image.over.src = s;
		image.menu = menu;
		loaded[image.name] = image;
	}
}
function F_roll(imageName,over) {
	if (document.images) {
	if (over) { imageObject = "over"; }
	else	  { imageObject = "out"; }
	image = loaded[imageName];
	if (image) {
		ref = eval("image."+imageObject);
		if (ref) image.src = eval("image."+imageObject+".src");
		else image.src = '';
	}
	if (image.menu)
	{
		if (over)
			F_menuOpen(image, image.menu);
		else
			F_menuClose();
	}
	if (window.event)
		window.event.cancelBubble = true;
	}
}
 
function F_menufindLeft(b)
{
  v = b.offsetLeft;
  if (b.offsetParent)
     v += F_menufindLeft(b.offsetParent);
  return v;
}

function F_menufindTop(b)
{
  v = b.offsetTop;
  if (b.offsetParent)
     v += F_menufindTop(b.offsetParent);
  return v;
}

function F_menuOpen(o, a)
{
	horizontal = a[1];

	if (document.all)
	{
		s = '<table onmouseover=F_menumouseover(this) onmouseout=F_menumouseout() border="0" cellspacing="0" cellpadding="0">';
		i = 2;
		while (i < a.length)
		{
			s += '<tr><td width="100%">';
			s += '<a href="' + a[i] + '">';
			s += '<img border="0" src="' + a[i + 1] + '"';
			if (a[i + 2].length)
			{
				s += ' onmouseover="this.src=\'' + a[i + 2] + '\'"';
				s += ' onmouseout="this.src=\'' + a[i + 1] + '\'"';
			}
			s += '>';
			s += '</a></td></tr>';
			i += 3;
		}
		s += '</table>';

		navbarmenutable.innerHTML = s;
		navbarmenu.style.position="absolute";
		var menutop = F_menufindTop(o) - 3;
		var menuleft = F_menufindLeft(o) - 3;
		if (horizontal)
			menutop += o.clientHeight;
		else
			menuleft += o.clientWidth;
		navbarmenu.style.top=menutop;
		navbarmenu.style.left=menuleft;
		navbarmenutable.style.visibility = 'visible';

		F_menuIsCreated = true;
	}
	else if (document.layers)
	{
		s = '<table border="0" cellspacing="0" cellpadding="0">';
		i = 2;
		while (i < a.length)
		{
			s += '<tr><td width="100%">';
			s += '<a href="' + a[i] + '"';
			if (a[i + 2].length)
				s += ' onMouseOver="F_roll(\'NavigationMenu' + i + '\',1)" onMouseOut="F_roll(\'NavigationMenu' + i + '\',0)"';
			s += '>';
			s += '<img border="0" src="' + a[i + 1] + '"';
			if (a[i + 2].length)
				s += ' name=\'NavigationMenu' + i + '\' onLoad="F_loadRollover(this,\'' + a[i + 2] + '\',0)"';
			s += '>';
			s += '</a></td></tr>';
			i += 3;
		}
		s += '</table>';

		document.navbarmenu.document.open();
		document.navbarmenu.document.write(s);
		document.navbarmenu.document.close();
		document.navbarmenu.top = document.layers[o.name].pageY + (horizontal ? a[0] : 0);
		document.navbarmenu.left = document.layers[o.name].pageX + (horizontal ? 0 : a[0]);
		document.navbarmenu.visibility = 'visible';

		F_menuIsCreated = true;
	}
}

function F_menuClose()
{
	F_menuIsCreated = false;
	setTimeout('F_checkMenuClose()', 100);
}

function F_checkMenuClose()
{
	if (!F_menuIsEntered && !F_menuIsCreated)
	{
		if (document.all)
			navbarmenutable.style.visibility = 'hidden';
		else if (document.layers)
			document.navbarmenu.visibility = 'hidden';
	}
}

function F_menu()
{
	if (document.all)
	{
		document.writeln("<TABLE  id='navbarmenu' border='0'>");
		document.writeln("<tr><td>");
		document.writeln("<DIV ALIGN='CENTER' ID='navbarmenutable' STYLE='Z-Index:5'>");
		document.writeln("</DIV>");
		document.writeln("</tr></td>");
		document.writeln("</TABLE>");
	}
	else if (document.layers)
		document.writeln('<LAYER id="navbarmenu" onmouseover="F_menumouseover()" onmouseout="F_menumouseout()"><LAYER width="100" id="description"></LAYER></LAYER>');
}

function F_menumouseover()
{
	F_menuIsEntered = true;
	F_menuIsCreated = false;
}

function F_menumouseout()
{
	F_menuIsEntered = false;
	setTimeout('F_checkMenuClose()', 100);
}