// Handles rollover images for NN3+ and IE4+

var loaded = new Array();

var F_menuIsEntered = false;

var F_menuIsCreated = false;

var F_menuAgt = navigator.userAgent.toLowerCase();

var F_menuIsGecko = (F_menuAgt.indexOf('gecko') != -1);

var F_menuIsOpera = (F_menuAgt.indexOf('opera') != -1);

var F_menuSubmenu;

var F_menuTable = new Array();



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 = '';



		ref = eval("image.menu");

		if (ref)

		{

			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)

{

	var menu;



	if (F_menuIsGecko)

		menu = document.getElementById(a[1] + 'LYR');

	else if (document.layers)

		menu = document.layers[a[1] + 'LYR'];

	else

		menu = eval(a[1] + 'LYR');

	

	if (F_menuSubmenu)

	{

		if (F_menuSubmenu != menu)

		{

			if (document.layers)

				F_menuSubmenu.visibility = 'hidden';

			else

				F_menuSubmenu.style.visibility = 'hidden';

		}

		else

		{

			F_menuIsCreated = true;

			return;

		}

	}



	F_menuSubmenu = menu;



	var horizontal = a[2];



	if (document.layers)

	{

		F_menuSubmenu.document.open();

		F_menuSubmenu.document.write(F_menuTable[a[1]]);

		F_menuSubmenu.document.close();

		F_menuSubmenu.top = document.layers[o.name].pageY + (horizontal ? a[0] : 0);

		F_menuSubmenu.left = document.layers[o.name].pageX + (horizontal ? 0 : a[0]);

		F_menuSubmenu.visibility = 'visible';

	}

	else

	{

		var menutop = F_menufindTop(o);

		var menuleft = F_menufindLeft(o);



		if (horizontal)

			menutop += a[0];

		else

			menuleft += a[0];



		F_menuSubmenu.style.top=menutop;

		F_menuSubmenu.style.left=menuleft;

		F_menuSubmenu.style.visibility = 'visible';

	}



	F_menuIsCreated = true;

}



function F_menuClose()

{

	F_menuIsCreated = false;

	setTimeout('F_checkMenuClose()', 100);

}



function F_checkMenuClose()

{

	if (!F_menuIsEntered && !F_menuIsCreated && F_menuSubmenu)

	{

		if (document.layers)

			F_menuSubmenu.visibility = 'hidden';

		else

			F_menuSubmenu.style.visibility = 'hidden';

		F_menuSubmenu = 0;

	}

}



function F_menu(a)

{

	var navname = a[0];

	var s;



	s = '<table onmouseover=F_menumouseover(this) onmouseout=F_menumouseout() border="0" cellspacing="0" cellpadding="0">';

	var i = 1;

	while (i < a.length)

	{

		var link = a[i];

		var target = '';

		var p = link.indexOf(' target=');

		if (p != -1)

		{

			target = link.substr(p + 8);

			link = link.substr(0, p);

		}

		s += '<tr><td width="100%">';

		s += '<a href="' + link + '"';

		if (target.length)

			s += ' target="' + target + '"';

		if (a[i + 2].length)

			s += ' onMouseOver="F_rolls(\'' + navname + 's' + i + '\',1)" onMouseOut="F_rolls(\'' + navname + 's' + i + '\',0)"';

		s += '>';

		s += '<img border="0" src="' + a[i + 1] + '"';

		if (a[i + 2].length)

			s += ' name=\'' + navname + 's' + i + '\' onLoad="F_loadRollover(this,\'' + a[i + 2] + '\',0)"';

		s += '>';

		s += '</a></td></tr>';

		i += 3;

	}

	s += '</table>';



	if (F_menuIsGecko)

	{

		document.writeln("<DIV ID='" + navname + "LYR' STYLE='Z-Index:5'>");

		document.writeln(s);

		document.writeln("</DIV>");

	}

	else if (F_menuIsOpera)

	{

		document.writeln("<DIV ID='" + navname + "LYR'>");

		document.writeln(s);

		document.writeln("</DIV>");

	}

	else if (document.all)

	{

		document.writeln("<DIV ID='" + navname + "LYR' STYLE='Z-Index:5'>");

		document.writeln(s);

		document.writeln("</DIV>");

	}

	else if (document.layers)

	{

		document.writeln('<LAYER id="' + navname + 'LYR" visibility=hidden onmouseover="F_menumouseover()" onmouseout="F_menumouseout()"></LAYER>');

		F_menuTable[navname] = s;

	}

}



function F_menumouseover()

{

	F_menuIsEntered = true;

	F_menuIsCreated = false;

}



function F_menumouseout()

{

	F_menuIsEntered = false;

	setTimeout('F_checkMenuClose()', 100);

}



function F_rolls(imageName,over)

{

	if (over)

		F_menumouseover();

	else

		F_menumouseout();



	F_roll(imageName,over);

}