var m_clrBackground = '#D7EAED';
var m_clrForeground = 'white';
var m_clrHiLite = '#ffffff';
var m_clrPublication = '#000000';

var m_PreviousColor; // so can restore top menu color
var m_CurrentMenu = 0;
var m_TimeoutID = 0;
var m_TimeoutShowMenuID = 0;
var m_MenuShowDelay = 300; // msec
var m_MenuHideDelay = 3000; // msec

var ua = navigator.userAgent.toLowerCase(); 

// browser name
this.isOpera       = (ua.indexOf('opera') != -1); 
this.isIE          = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) ); 
this.isFirefox     = (ua.indexOf('firefox') != -1);
this.isNS          = (ua.indexOf('netscape') != -1);
this.isMac    = (ua.indexOf('mac') != -1);


var menuOffset = 25;

// Browser changes
 if (this.isFirefox == true || this.isNS == true) {
   var menuOffset = 15;
}
// Browser changes
 if (this.isMac == true && this.isIE != true) {
   var menuOffset = 15;
}


function ShowMenu(itemID, bShow)
{
	clearTimeout(m_TimeoutShowMenuID);	
	
	if (bShow)
	{
		if (m_CurrentMenu)
		{
			DoShowMenu(itemID, bShow); // instantly if menus already up	
		}
		else
		{
			// delay if showing so don't get too many accidental showings
			m_TimeoutShowMenuID = setTimeout("DoShowMenu('" + itemID + "', true);", m_MenuShowDelay);
		}
	}
	else 
		DoShowMenu(itemID, bShow); // instantly if hiding
}

function DoShowMenu(itemID, bShow)
{
	clearTimeout(m_TimeoutShowMenuID);	
	clearTimeout(m_TimeoutID);
	
	var item = document.getElementById(itemID);
		
	if (bShow)
	{	
		var vecXY = GetPageXY(itemID);	
	
		m_PreviousColor = item.style.color;
		
		item.style.color = m_clrHiLite;

		if (m_CurrentMenu)
			m_CurrentMenu.style.visibility = 'hidden';
							
		m_CurrentMenu = document.getElementById('div' + item.id);
		
		if (m_CurrentMenu)
		{
			m_CurrentMenu.style.visibility = "";
			m_CurrentMenu.style.left = vecXY[0] + 1;
			m_CurrentMenu.style.top = vecXY[1] + menuOffset; 
			m_CurrentMenu.style.width = "180px";
			m_CurrentMenu.style.backgroundColor = "white";
			}
	}
	else
	{
		item.style.color = m_PreviousColor;	
	}	
	
	var sels = document.all.tags("SELECT");
	var nSels = sels.length;
	
	for(var i = 0; i < nSels; i++)
	{
         if (sels[i].name == 'Option1' || sels[i].name == 'Option2' || sels[i].name == 'Tax') { 
		sels[i].style.visibility = 'hidden';
         }
	}	
	
	m_TimeoutID = setTimeout("HideCurrentMenu();", m_MenuHideDelay);
}

function HideCurrentMenu()
{
	clearTimeout(m_TimeoutShowMenuID);	
	clearTimeout(m_TimeoutID);
	
	if (m_CurrentMenu)
	{
			m_CurrentMenu.style.visibility = 'hidden';
			m_CurrentMenu = 0;
	}
		
	var sels = document.getElementsByTagName("SELECT");
	var nSels = sels.length;
	
	for(var i = 0; i < nSels; i++)
	{         
         if (sels[i].name == 'Option1' || sels[i].name == 'Option2' || sels[i].name == 'Tax') { 
		sels[i].style.visibility = '';
         }
	}	
	
}

function MenuHilite(item, b)
{
	clearTimeout(m_TimeoutShowMenuID);	
	clearTimeout(m_TimeoutID);

	if (b)
	{
		item.style.backgroundColor = m_clrBackground;
		item.style.color = m_clrHiLite;
	}
	else
	{
		item.style.backgroundColor = m_clrForeground;
		item.style.color = m_clrBackground;
	}

	m_TimeoutID = setTimeout("HideCurrentMenu();", m_MenuHideDelay);	
}

function ChangePublication(item)
{
	var sMag = item.innerHTML;
	
	sMag = sMag.replace(/<img.*$/, '');	// strip image tag
	sMag = sMag.replace(/^&nbsp;/, '');
	
	// regular expression (regexp) trim	
	sMag = sMag.replace(/^\s*/, '');
	sMag = sMag.replace(/\s*$/, '');
	sMag = sMag.replace('\xa0', ''); // nbsp
	
	document.getElementById('mnuPublications').innerHTML = '&nbsp;' + sMag.toUpperCase() + '<img border="0" src="images/down.gif" width="13" height="13">';

	if (document.getElementById('hidTemp'))
		document.getElementById('hidTemp').value = "ChangePublication";

	location.href = 'main.asp?mag=' + escape(sMag) + '&pubchanged=1&sessionid=' + msSessionID + '&serial=' + escape(String(Math.floor(100000 * Math.random())));
}


function LoadPage(sURL)
{
	var sMag = document.getElementById('mnuPublications').innerHTML;
	
	sMag = sMag.replace(/<img.*$/i, '');	// strip image tag
	sMag = sMag.replace(/^&nbsp;/i, '');

	// regular expression (regexp) trim	
	sMag = sMag.replace(/^\s*/, '');	
	sMag = sMag.replace(/\s*$/, '');
	
	var sNextPage = sURL + '&mag=' + escape(sMag) + '&sessionid=' + msSessionID +  '&serial=' + escape(String(Math.floor(100000 * Math.random())));
	
	window.location.href = sNextPage;
}

function GetPageXY(id) 
{
	var layer = document.getElementById(id);
	var x=0;
	var y=0;
	
	while (layer.offsetParent != null) 
	{  
		x += layer.offsetLeft; 
		y += layer.offsetTop; 
		layer = layer.offsetParent; 
	}
	
    x += layer.offsetLeft;
    y += layer.offsetTop;
    
    var arr = new Array;
    arr[0] = x;
    arr[1] = y;
    
    return arr;
}			


function GetPageY(id) 
{
	var layer = document.getElementById(id);
	var y=0;
	
	while (layer.offsetParent != null) 
	{  
		y += layer.offsetTop; 
		layer = layer.offsetParent; 
	}
	
    y += layer.offsetTop;
    
    return y;
}