//----------------------------------------------------------
// Common Javascript Functions
//----------------------------------------------------------

function isToday(dateString) {
//dte format: dd\mm\yyyy
  	var now = new Date();
	var today = new Date(now.getYear(),now.getMonth(),now.getDate());

	var date = new Date(dateString.substring(6,10),
		dateString.substring(3,5)-1,
		dateString.substring(0,2));
		
  	if (date.toString() == today.toString())
  	{
		return true;
        }
    else
        return false;
}


function isYesterday(dateString) {
//dte format: dd\mm\yyyy
  	var now = new Date();
  	var dte = new Date();

  	dte.setDate(now.getDate()-1);
  	var yesterday = new Date(dte.getYear(),dte.getMonth(),dte.getDate());

	var date = new Date(dateString.substring(6,10),
		dateString.substring(3,5)-1,
		dateString.substring(0,2));
		
  if (date.toString() == yesterday.toString())
        return true;
    else
        return false;
}


function getQueryStringPar(id) {
	qs = window.location.search.substring(1);
	pars = qs.split("&");

	for (i=0; i<pars.length; i++) 
	{
		key = pars[i].split("=");
		if (key[0].toLowerCase() == id.toLowerCase()) 
		{
			return key[1];
		}
	}
	return "";
}


function browserType() {
	var agt=navigator.userAgent.toLowerCase();
	if (agt.indexOf("opera") != -1) return 'Opera';
	if (agt.indexOf("staroffice") != -1) return 'Star Office';
	if (agt.indexOf("webtv") != -1) return 'WebTV';
	if (agt.indexOf("beonex") != -1) return 'Beonex';
	if (agt.indexOf("chimera") != -1) return 'Chimera';
	if (agt.indexOf("netpositive") != -1) return 'NetPositive';
	if (agt.indexOf("phoenix") != -1) return 'Phoenix';
	if (agt.indexOf("firefox") != -1) return 'Firefox';
	if (agt.indexOf("safari") != -1) return 'Safari';
	if (agt.indexOf("skipstone") != -1) return 'SkipStone';
	if (agt.indexOf("msie") != -1) return 'Internet Explorer';
	if (agt.indexOf("netscape") != -1) return 'Netscape';
	if (agt.indexOf("mozilla/5.0") != -1) return 'Mozilla';
	if (agt.indexOf('\/') != -1) {
	if (agt.substr(0,agt.indexOf('\/')) != 'mozilla') {
	return navigator.userAgent.substr(0,agt.indexOf('\/'));}
	else return 'Netscape';} else if (agt.indexOf(' ') != -1)
	return navigator.userAgent.substr(0,agt.indexOf(' '));
	else return navigator.userAgent;
}

function urlDecode (encodedString) {
  var output = encodedString;
  var binVal, thisString;
  var myregexp = /(%[^%]{2})/;
  while ((match = myregexp.exec(output)) != null
             && match.length > 1
             && match[1] != '') {
    binVal = parseInt(match[1].substr(1),16);
    thisString = String.fromCharCode(binVal);
    output = output.replace(match[1], thisString);
  }
  return output;
}

function urlEncode (clearString) {
  var output = '';
  var x = 0;
  clearString = clearString.toString();
  var regex = /(^[a-zA-Z0-9_.]*)/;
  while (x < clearString.length) {
    var match = regex.exec(clearString.substr(x));
    if (match != null && match.length > 1 && match[1] != '') {
    	output += match[1];
      x += match[1].length;
    } else {
      if (clearString[x] == ' ')
        output += '+';
      else {
        var charCode = clearString.charCodeAt(x);
        var hexVal = charCode.toString(16);
        output += '%' + ( hexVal.length < 2 ? '0' : '' ) + hexVal.toUpperCase();
      }
      x++;
    }
  }
  return output;
}

		
// ---------------------------
// Legal
// ---------------------------
// CastleBusyBox Control
// Castle Rock Software, LLC
// by Mark Wagner
// http://www.crsw.com
//
// Version: 1.2
//
// Copyright 2004, 2005 Castle Rock Software, LLC
// No warranty express or implied.

// ---------------------------
// General Notes
// ---------------------------
// The BusyBox javascript has been written so the BusyBox javascript
// control can be used with or without the Castle.BusyBox .NET control.

// ---------------------------
// Constructor
// ---------------------------
// BusyBox class constructor
// Arguments:
//   id - id of the IFrame tag to use.
//   varName - name of the variable this instance of the busy box is assigned to.
//   imageCount - number of image in the animation sequence.
//   imageNamePrefix - name prefix for each image.
//   imageNameSuffix - name suffix for each image.
//   imageDelay - number of milliseconds to display each image.
//   width - defines the width of the busy box (required for Netscape and Firefox)
//   height - defines the height of the busy box (required for Netscape and Firefox)
//   url - (optional) url to the page containing the custom busy box layout.
//
//   This example uses the default busy box layout defined internally (in the javascript).
//   var busyBox = new BusyBox("BusyBox1", "busyBox", 4, "gears_ani_", ".gif", 125, 147, 206)
//
//   This example uses a custom busy box layout defined in the BusyBox.htm file.
//   var busyBox = new BusyBox("BusyBox1", "busyBox", 4, "gears_ani_", ".gif", 125, 147, 206, "BusyBox.htm")
//

function BusyBox(id, varName, imageCount, imageNamePrefix, imageNameSuffix, imageDelay, width, height, url)
{
	// Initialize object
	this.id = id;
	this.ImageCount = imageCount;
	this.CurrentImageIndex = 0;
	this.ImageWidth = 0;
	this.ImageHeight = 0;
	this.ImageNamePrefix = imageNamePrefix;
	this.ImageNameSuffix = imageNameSuffix;
	this.ImageDelay = imageDelay;
	this.DivID = "BusyBoxDiv";
	this.ImgID = "BusyBoxImg";
	this.Enabled = true;
	this.Width = width;
	this.Height = height;
	
	// Retain the name of the instantiated object variable so that we can animate 
	// using the setTimeout statement
	this.VarName = varName;
	
	// Allows us to stop the animation with clearTimeout(), should we ever want to
	this.timeout_id = null;
	
	// Cache (pre-load) images
	this.CacheImages();
	
	// Url to the page containing the busy box.
	this.BusyBoxUrl = url;
	
	// Get reference to the IFrame object
	this.IFrame = document.getElementById(this.id);
	
	// Hide the busy box
	this.Hide();
	
	if( this.BusyBoxUrl )
		// Load the busy box contents using a custom layout page.
		this.LoadUrl(this.BusyBoxUrl);
	else
		// Load the busy box contents using the internally defined layout.
		this.RenderContent();
	
	// If this browser does not support IFRAME tags then disable this control.  The
	// next version will implement the use of a DIV instead of the IFRAME tag; 
	// even though there are a couple minor issues with using DIV tags.
	if( !frames[this.id] )
		this.Enabled = false;
}

// --------------------------------
// Instance Methods
// --------------------------------

// GetIFrameDocument:
// Returns a reference to the document object in the IFrame.
BusyBox.prototype.GetIFrameDocument = function()
{
	var doc;
	if( this.IFrame.contentDocument )
		// For NS6
		doc = this.IFrame.contentDocument; 
	else if( this.IFrame.contentWindow ) 
		// For IE5.5 and IE6
		doc = this.IFrame.contentWindow.document;
	else if( this.IFrame.document )
		// For IE5
		doc = this.IFrame.document;
	else
// TODO: Confirm this should be the default
		doc = this.IFrame.document;	
	return doc;
}

// LoadUrl:
// Changing the src attribute for an IFrame tag causes each new page to be 
// added to the browsers history object.  This causes undesired results for 
// the user when they click the back button.  Instead, we can use the 
// document.location.replace() method to correctly load our busy box 
// page into our IFrame.
//
// Arguments:
//		url - url to the busy box page.
BusyBox.prototype.LoadUrl = function(url)
{
	// Get a reference to the document object in the IFrame
	var IFrameDoc = this.GetIFrameDocument();
	
	// Load the url using the replace method.  This will prevent the browsers 
	// history object from being updated with the new busybox url; thus allowing 
	// the back button to function as desired for the user.
	IFrameDoc.location.replace(url);
}

// RenderContent:
// This method is used when the default busy box layout is used; not a custom 
// layout.  This method is called when the url argument for the constructor is null.
BusyBox.prototype.RenderContent = function()
{
	// Get the IFrame document object
	var doc = this.GetIFrameDocument();
	
	var style = " style='BORDER: navy 3px solid; POSITION: absolute;' ";
	
	doc.open();
	doc.writeln("<body ondragstart='return false;' style='Margin: 0px; Background-Color: white'>");
	doc.writeln("   <div id='" + this.DivID + "' align=center " + style + ">");
	doc.writeln("      <img id='" + this.ImgID + "' src=''>");
	doc.writeln("      <h3>Processing</h3>");
	doc.writeln("   </div>");
	doc.writeln("</body>");
	doc.close();
}

// Resize:
// Resizes the busy box IFrame by setting its width and height attributes
// to the size of its contents.
BusyBox.prototype.Resize = function()
{
//zzz
	// Resize the busy box IFrame.
	if( BusyBox.IsBrowserIE() )
	{
		// Set the width by looking at its contents
		var div = frames[this.id].document.getElementById(this.DivID);
		this.IFrame.style.width = div.offsetWidth;
		this.IFrame.style.height = div.offsetHeight;
	}
	else
	{
		// Set the width to the value specified.
		this.IFrame.style.width = this.Width + "px";
		this.IFrame.style.height = this.Height + "px";
	}
}

// Center:
// Centers the busy box IFrame on the page regardless of the browsers
// scroll position.  This ensures the busy box is presented to the user
// in a visible location in the window.
BusyBox.prototype.Center = function()
{
	if( !this.IFrame )
		return;
	
	// Center the BusyBox in the window regardless of the scroll positions
	var objLeft = (document.body.clientWidth - this.IFrame.offsetWidth) / 2;
	var objTop = (document.body.clientHeight - this.IFrame.offsetHeight) / 2;
	objLeft = objLeft + document.body.scrollLeft;
	objTop = objTop + document.body.scrollTop;
	
	// Position object
	this.IFrame.style.position = "absolute";
//	this.IFrame.style.top = objTop;
//	this.IFrame.style.left = objLeft;
}

// CacheImages:
// Pre-loads the images from the server and stores a reference to each
// image.  This allows the images to be presented to the user quickly
// for smooth image animation.
BusyBox.prototype.CacheImages = function()
{
	// Instantiate the array to store the image references
	this.Images = new Array(this.ImageCount);
	
	// Load all the images to cache into the aniframes array
	for(var i = 0; i < this.ImageCount; i++)
	{
		this.Images[i] = new Image();
		this.Images[i].src = this.ImageNamePrefix + i + this.ImageNameSuffix;
	}
}

// IsAnimating:
// Returns a boolean value representing the state of the animation.
BusyBox.prototype.IsAnimating = function()
{
	if( this.timeout_id == null)
		return false;
	else
		return true;
}

// IsVisible:
// Returns a boolean value representing the visibility state for the busy box.
BusyBox.prototype.IsVisible = function()
{
	var ifrm = document.getElementById(this.id);
	
	if( ifrm.style.visibility == "visible" && ifrm.style.width > 0 )
		return true;
	else
		return false;
}

// Animate:
// Performs the animation process.  This is accomplished by showing the "current" 
// image in the animation sequence process; and then submitting a timed statement
// to execute in x number of milliseconds.
BusyBox.prototype.Animate = function()
{

	// Assign the current image sequence to display
	if( frames[this.id] )
		// browser supports frames
		frames[this.id].document.getElementById(this.ImgID).src = this.Images[this.CurrentImageIndex].src;
	else
		// browser does not support frames
		document.getElementById(this.ImgID).src = this.Images[this.CurrentImageIndex].src;

	// Auto re-center and re-size the busy box.  This will force the busy box to 
	// always appear in the center of the window even if the user scrolls.
	this.Resize();
	this.Center();

	// Increment the current image index
	this.CurrentImageIndex = (this.CurrentImageIndex + 1)%this.ImageCount;

	// Display the next image in (imageDelay value) milliseconds (i.e. 125)
	this.timeout_id = setTimeout(this.VarName + ".Animate();", this.ImageDelay);
}

// StartAnimation:
// Starts the animation process.
BusyBox.prototype.StartAnimate = function()
{

	if( this.IsAnimating() )
		return;

	this.Animate();
}

// StopAnimation:
// Stops the animation process.
BusyBox.prototype.StopAnimate = function()
{
	clearTimeout(this.timeout_id);
	this.timeout_id = null;
}

// Hide:
// Hides the busy box making it invisible to the user.
BusyBox.prototype.Hide = function()
{	
	this.StopAnimate();
	
	// Hide the busy box.
	this.IFrame.style.visibility = "hidden";
	this.IFrame.style.width = 0;
	this.IFrame.style.height = 0;
}

// Show:
// This function displays the busy box to the user.  This function centers the 
// busy dialog box, makes it visible, and starts the animation.  This function 
// will typically be called by the body event.
//
// Example:
//		<body onbeforeunload="busyBox.Show();" >
BusyBox.prototype.Show = function()
{
	if( !this.Enabled )
		return;

	if( this.IsAnimating() || this.IsVisible() )
		return;	

	this.Resize();
	this.Center();

	// Set the busy box to be visible and make sure it is on top of all other controls.	
	this.IFrame.style.visibility = "visible";
	this.IFrame.style.zIndex = "999999";

//	this.IFrame.style.top = "500px";
//	this.IFrame.style.left = "100px";
//zzz

	// Start the animation
	this.StartAnimate();

}

// --------------------------------
// Class Methods
// --------------------------------

// IsBrowserIE:
// Returns true if the executing browser it a Microsoft Internet Explorer browser.
BusyBox.IsBrowserIE = function()
{
	try
	{ return (window.navigator.userAgent.indexOf("MSIE ") > 0); }
	catch(x)
	{ return false; }
}

// IsBrowserNS:
// Returns true if the executing browser it a Netscape browser.
BusyBox.IsBrowserNS = function()
{
	try
	{ return (window.navigator.userAgent.indexOf("Netscape") > 0); }
	catch(x)
	{ return false; }
}

// IsBrowserFirefox:
// Returns true if the executing browser it a Firefox browser.
BusyBox.IsBrowserFirefox = function()
{
	try
	{ return (window.navigator.userAgent.indexOf("Firefox") > 0); }
	catch(x)
	{ return false; }
}