if (document.all)    {n=0;ie=1;fShow="visible";fHide="hidden";}
if (document.layers) {n=1;ie=0;fShow="show";   fHide="hide";}

window.onerror=new Function("return true")
////////////////////////////////////////////////////////////////////////////
// Function Menu()                                                        //
////////////////////////////////////////////////////////////////////////////
rightX = 0;
function Menu()
{	// Initialise menu
this.bgColor     = "#000094";
if (ie) this.menuFont = "bold xx-small Verdana";
if (n)  this.menuFont = "bold x-small Verdana";
this.fontColor   = "white";

this.addItem    = addItem;
this.addSubItem = addSubItem;
this.showMenu   = showMenu;
this.mainPaneBorder = 0;
this.subMenuPaneBorder = 0;

//this.subMenuPaneWidth = 170;

lastMenu = null;
	
rightY = 0;
leftY = 0;
leftX = 0;

HTMLstr = "";
HTMLstr += "<!-- MENU PANE DECLARATION BEGINS -->\n";
HTMLstr += "\n";
if (ie) HTMLstr += "<div id='MainTable' style='position:relative'>\n";
HTMLstr += "<!-- MAIN MENU STARTS -->\n";
HTMLstr += "<!-- MAIN_MENU -->\n";	// Menu items will be inserted here
HTMLstr += "<!-- MAIN MENU ENDS -->\n";
HTMLstr += "\n";
HTMLstr += "<!-- SUB MENU STARTS -->\n";
HTMLstr += "<!-- SUB_MENU -->\n";	// Submenu items will be inserted here
HTMLstr += "<!-- SUB MENU ENDS -->\n";
HTMLstr += "\n";
if (ie) HTMLstr+= "</div>\n";
HTMLstr += "<!-- MENU PANE DECALARATION ENDS -->\n";
}


function addItem(idItem, text, hint, location, altLocation)
{
var Lookup = "<!-- ITEM "+idItem+" -->";
// Make sure item does not already exist - why?
if (HTMLstr.indexOf(Lookup) != -1)	// Search HTMLstr for Lookup string
	{alert(idParent + " already exist");return;}
var MENUitem = "";
MENUitem += "\n<!-- ITEM "+idItem+" -->\n";
if (n)
	{
	MENUitem += "<TD>";
	MENUitem += "<ilayer name="+idItem+">";
	MENUitem += "<a href='.' class=clsMenuItemNS onmouseover=\"displaySubMenu('"+idItem+"')\" onclick=\"return false;\">";
	MENUitem += text;
	MENUitem += "</a>";
	MENUitem += "</ilayer>";
	MENUitem += "</TD>";
	}
if (ie)
	{	// Create MENUitem string for ie.
	MENUitem += "<td>";
	MENUitem += "<div id='"+idItem+"' style='position:relative; font: "+this.menuFont+";' align=bottom>";
	MENUitem += "<a ";
	MENUitem += "class=clsMenuItemIE ";
	MENUitem += "href='.' ";
	MENUitem += "onmouseover=\"displaySubMenu('"+idItem+"')\" ";
	MENUitem += "onclick=\"return false;\" "
	MENUitem += ">";
	MENUitem += text;
	MENUitem += "</a>";
	MENUitem += "</div>\n";
	}
MENUitem += "<!-- END OF ITEM "+idItem+" -->\n\n";
MENUitem += "<!-- MAIN_MENU -->\n";	// To be replaced by next addItem()
// Insert MENUitem into HTMLstr
HTMLstr = HTMLstr.replace("<!-- MAIN_MENU -->\n", MENUitem);
}



function addSubItem(idParent, text, hint, link)
{
var MENUitem = "";
var subMenuPaneWidth = 200;

if( ie )
	{	// i.e. 5.50-> sets pane width automatically if width = 0 
		// Netscape sets pane width automatically if > text width
	astring = navigator.appVersion;	// Browser version
	if( (i=astring.search(/MSIE /i)) != -1 )
		{	// Found MSIE in version string - get IE version number
		if( parseFloat( astring.substring(i+5,i+9) ) >= 5.5 )
			subMenuPaneWidth = 0;
		}
	}

Lookup = "<!-- ITEM "+idParent+" -->";
if (HTMLstr.indexOf(Lookup) == -1)
	{alert(idParent + " not found");return;}
Lookup = "<!-- NEXT ITEM OF SUB MENU "+ idParent +" -->";
if (HTMLstr.indexOf(Lookup) == -1)
	{
	if (n)
		{
		MENUitem += "\n";
		MENUitem += "<layer id='"+idParent+"submenu' visibility=hide bgcolor='"+this.bgColor+"'>\n";
		MENUitem += "<table border='"+this.subMenuPaneBorder+"' bgcolor='"+this.bgColor+"' width="+this.subMenuPaneWidth+">\n";
		MENUitem += "<!-- NEXT ITEM OF SUB MENU "+ idParent +" -->\n";
		MENUitem += "</table>\n";
		MENUitem += "</layer>\n";
		MENUitem += "\n";
		}
	if (ie)
		{
		MENUitem += "\n";
		//MENUitem += "<div id='"+idParent+"submenu' style='position:absolute; visibility: hidden; width: "+this.subMenuPaneWidth+"; font: "+this.menuFont+"; top: -300;'>\n";
		MENUitem += "<div id='"+idParent+"submenu' style='position:absolute; visibility: hidden; width: "+subMenuPaneWidth+"; font: "+this.menuFont+"; top: -300;'>\n";
		//MENUitem += "<table border='"+this.subMenuPaneBorder+"' bgcolor='"+this.bgColor+"' width="+this.subMenuPaneWidth+">\n";
		MENUitem += "<table border='"+this.subMenuPaneBorder+"' bgcolor='"+this.bgColor+"' width="+subMenuPaneWidth+">\n";
		MENUitem += "<!-- NEXT ITEM OF SUB MENU "+ idParent +" -->\n";
		MENUitem += "</table>\n";
		MENUitem += "</div>\n";
		MENUitem += "\n";
		}
	MENUitem += "<!-- SUB_MENU -->\n";
	HTMLstr = HTMLstr.replace("<!-- SUB_MENU -->\n", MENUitem);
	}

Lookup = "<!-- NEXT ITEM OF SUB MENU "+ idParent +" -->\n";
if (n)  MENUitem = "<tr><td><a class=clsMenuItemNS title='"+hint+"' href='"+link+"'>"+text+"</a><br></td></tr>\n";
if (ie) MENUitem = "<tr><td><a class=clsMenuItemIE title='"+hint+"' href='"+link+"'>"+text+"</a><br></td></tr>\n";
MENUitem += Lookup;
HTMLstr = HTMLstr.replace(Lookup, MENUitem);
}


function showMenu()
{
document.writeln(HTMLstr);
}

////////////////////////////////////////////////////////////////////////////
// Private declaration
function displaySubMenu(idMainMenu)
{
var menu;
var submenu;
if (n)
	{
	submenu = document.layers[idMainMenu+"submenu"];
	if (lastMenu != null && lastMenu != submenu) hideAll();
	submenu.left = document.layers[idMainMenu].pageX;
	submenu.top  = document.layers[idMainMenu].pageY + 25;
	submenu.visibility = fShow;

	leftX  = document.layers[idMainMenu+"submenu"].left;
	rightX = leftX + document.layers[idMainMenu+"submenu"].clip.width;
	leftY  = document.layers[idMainMenu+"submenu"].top+
			document.layers[idMainMenu+"submenu"].clip.height;
	rightY = leftY;
	} 
else if (ie) 
	{
	menu = eval(idMainMenu);
	submenu = eval(idMainMenu+"submenu.style");
	submenu.left = calculateSumOffset(menu, 'offsetLeft');
	submenu.top  = menu.style.top+110;
	submenu.visibility = fShow;
	if (lastMenu != null && lastMenu != submenu) hideAll();

	leftX  = document.all[idMainMenu+"submenu"].style.posLeft;
	rightX = leftX + document.all[idMainMenu+"submenu"].offsetWidth;

	leftY  = document.all[idMainMenu+"submenu"].style.posTop+
			document.all[idMainMenu+"submenu"].offsetHeight;
	rightY = leftY;
	}
lastMenu = submenu;
}


function hideAll()
{
if (lastMenu != null) {lastMenu.visibility = fHide;lastMenu.left = 0;}
}


function calculateSumOffset(idItem, offsetName)
{
var totalOffset = 0;
var item = eval('idItem');
do
	{
	totalOffset += eval('item.'+offsetName);
	item = eval('item.offsetParent');
	} while (item != null);
return totalOffset;
}


function updateIt(e)
{
if (ie)
	{
	var x = window.event.clientX;
	var y = window.event.clientY;

	if (x > rightX || x < leftX) hideAll();
	else if (y > rightY) hideAll();
	}
if (n)
	{
	var x = e.pageX;
	var y = e.pageY;

	if (x > rightX || x < leftX) hideAll();
	else if (y > rightY) hideAll();
	}
}


if (document.all)
{
document.body.onclick=hideAll;
document.body.onscroll=hideAll;
document.body.onmousemove=updateIt;
}

if (document.layers)
{
document.onmousedown=hideAll;
window.captureEvents(Event.MOUSEMOVE);
window.onmousemove=updateIt;
}