//
// home.js
//

// -------------------------------------------------------------
// cross-browser helper functions
// -------------------------------------------------------------

// Global variables
var isCSS 			= false;
var isW3C 			= false;
var isIE4 			= false;
var isNN4 			= false;
var isIE6 			= false;
var isGecko 		= false;
var isOpera 		= false;
var isDHTML 		= false;
var suppressMenus	= false;
var legacyMode		= false;
var timerID			= null;
var subtimerID		= null;

// Add a BookMark
function addBookMark()
{
	if ( window.external ) 
		{
			window.external.AddFavorite( document.location.href,document.title );
		} 
		else 
		{
			alert( "Sorry, your browser doesn't support bookmarking this page...\n\nPlease try pressing Control + D instead" );
		}
}

// initialize upon load to let all browsers establish content objects
function autoconfig()
{
    if( document && document.images )
    {
        isCSS		= (document.body && document.body.style) ? true : false;
        isW3C		= (isCSS && document.getElementById) ? true : false;
        isIE4		= (isCSS && document.all && readIEVer() >= 4.0) ? true : false;
        isNN4		= (document.layers) ? true : false;
        isGecko		= (isCSS && navigator && navigator.product && navigator.product == "Gecko");
        isOpera		= (isCSS && navigator.userAgent.indexOf( "Opera") != -1 );
		isIE6CSS	= (document.compatMode && document.compatMode.indexOf("CSS1") >= 0) ? true : false;
		isIE6		= ( isIE6CSS && readIEVer() >= 6.0 );
        isDHTML		= isCSS && ( isIE4 || isGecko || isOpera );
        
        if( suppressMenus || ( isOpera && readOperaVer() < 7 ) || ( isGecko && navigator.productSub <= 20011022 ) || ( isGecko && navigator.productSub == 20030107 ) )
        {
			// Opera 6.x doesn't seem to like the DHTML...
			// Netscape 6.2 puts the menus in the wrong place...
			// Safari, the menus don't go away... problem in ResetMenu
			isDHTML	= false;
        }  
	//fix up search params
		if( typeof(m_search) != "undefined" && m_search != null )
		{
			var r1			= /name=\"cat\"/g;
			var r2			= /value=\"all\"/g;
			m_search		= m_search.replace ( r1, "name=\"subcat\"" ).replace ( r2, "value=\"\"");;
		}      
    } 
    
}


function readIEVer()
{
	var agent	= navigator.userAgent;
	var offset	= agent.indexOf( "MSIE" );
	if( offset < 0 )
	{
		return 0;
	}
	return parseFloat( agent.substring( offset + 5, agent.indexOf( ";", offset ) ) );
}

function readOperaVer()
{
	var agent	= navigator.userAgent;
	var offset	= agent.indexOf( "Opera" );
	if( offset < 0 )
	{
		return 0;
	}
	return parseFloat( agent.substring( offset + 6 ) );
}

// -------------------------------------------------------------
// client-side masthead
// -------------------------------------------------------------

var m_pnlinks;
var m_crumbs;
var m_mhFixed		= false;
var m_isHome		= false;
var m_isSegHome		= false;
var m_mda			= null;
var m_printLink		= null;
var m_emailLink		= false;
var m_production	= true;
var m_menudef		= "/content/public/menu.aspx";

function mhFixupLink( href, extra )
{
	if( typeof(extra) == "undefined" )
	{
		extra = "&~ck=mn";
	}
	
	if( href )
	{
		var anchor		= null;
		var anchorix	= href.indexOf( "#" );
		
		if( anchorix != -1 )
		{
			anchor		= href.substr( anchorix );
			href		= href.substr( 0, anchorix );
		}
		
		if( href.indexOf( "?" ) == -1 )
		{
			extra = "?" + extra.substr( 1 );
		}

		if( href.toLowerCase().indexOf( "javascript:" ) == -1 )
		{
			href += extra;
		}
		else
		{
			start = href.indexOf( "?" );
			
			if( start != -1 )
			{
				ix = href.indexOf( "\'", start );
				
				if( ix == -1 )
				{
					ix = href.indexOf( "\\", start );

					if( ix == -1 )
					{
						ix = href.indexOf( "\"", start );
					}
				}
				
				if( ix != -1 )
				{
					href = href.substr( 0, ix ) + extra + href.substr( ix );
				}
			}
		}
		
		if( anchor )
		{
			href += anchor;
		}
	}
	
	return href;
}

function menuItem( text, href )
{
	this.Text			= text;
	this.Href			= mhFixupLink( href, "&~ck=mn" );
	this.IsSeparator	= false;
	this.IsCaption		= false;
	this.MenuItems		= null;
}


function mhLink( text, href, icon, extra )
{
	href = mhFixupLink( href, extra );

	this.Text			= text;
	this.Href			= href;
	this.Icon			= icon;
}

function addPnLink( text, href, icon )
{
	if( !m_pnlinks )
	{
		m_pnlinks = new Array();
	}
	
	m_pnlinks[m_pnlinks.length] = new mhLink( text, href, icon );
}

function addCrumb( text, href )
{
	if( !m_crumbs )
	{
		m_crumbs = new Array();
	}
	
	m_crumbs[m_crumbs.length] = new mhLink( text, href, null );
}




// MM Roll Over Scripts Start

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];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// MM Roll Over Script ends

// image rotator functions
//TODO_1: Image Rotator Functions - FIX?? 
function imageItem(image_location) {
	this.image_item = new Image();
	this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
	return(imageObj.image_item.src)
}
function generate(x, y) {
	var range = y - x + 1;
	return Math.floor(Math.random() * range) + x;
}
function getNextImage() {
	if (random_display) {
		image_index = generate(0, number_of_image-1);
	}
	else {
		image_index = (image_index+1) % number_of_image;
	}
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
}
function rotateImage(place) {
	var new_image = getNextImage();
	document[place].src = new_image;
	var recur_call = "rotateImage('"+place+"')";
	setTimeout(recur_call, interval);
}
// end image rotator functions

// browser type...
var browserName=navigator.appName; 
function doDownloadBrowserCheck() {
	if (browserName!="Microsoft Internet Explorer")
	{
	alert("ZILLAbar currently only supports Internet Explorer 5.0 and above.");
	}
 }
 
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}