// Built in fixes:
// Show caption: http://code.google.com/p/submodal/issues/detail?id=1
// Detection of IE8: http://code.google.com/p/submodal/issues/detail?id=16
// "Progress screen" doesn't show: http://code.google.com/p/submodal/issues/detail?id=15
// Back button shows "Progress screen": http://code.google.com/p/submodal/issues/detail?id=4

// Removed unused variables:
// gi
// brsVersion

// Made some global vars local.

// Removed unused code:
			// var onclick = 'function (){showPopWin(\''+elms[i].href+'\','+width+', '+height+', null);return false;};';
			// elms[i].onclick = eval(onclick);
		//alert(fullWidth + " " + width + " " + gPopupContainer.style.left);

// Made JSLint compatible.

// Merged common.js into subModal.js.

/**
 * SUBMODAL v1.6
 * Used for displaying DHTML only popups instead of using buggy modal windows.
 *
 * By Subimage LLC
 * http://www.subimage.com
 *
 * Contributions by:
 *  Eric Angel - tab index code
 *  Scott - hiding/showing selects for IE users
 *  Todd Huss - inserting modal dynamically and anchor classes
 *
 * Up to date code can be found at http://submodal.googlecode.com
 */

/**
 * COMMON DHTML FUNCTIONS
 * These are handy functions I use all the time.
 *
 * By Seth Banks (webmaster at subimage dot com)
 * http://www.subimage.com/
 *
 * Up to date code can be found at http://www.subimage.com/dhtml/
 *
 * This code is free for you to use anywhere, just keep this comment block.
 */

/**
 * X-browser event handler attachment and detachment
 * TH: Switched first true to false per http://www.onlinetools.org/articles/unobtrusivejavascript/chapter4.html
 *
 * @argument obj - the object to attach event to
 * @argument evType - name of the event - DONT ADD "on", pass only "mouseover", etc
 * @argument fn - function to call
 */
function addEvent(obj, evType, fn){
 if (obj.addEventListener){
    obj.addEventListener(evType, fn, false);
    return true;
 } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
 } else {
    return false;
 }
}
function removeEvent(obj, evType, fn, useCapture){
  if (obj.removeEventListener){
    obj.removeEventListener(evType, fn, useCapture);
    return true;
  } else if (obj.detachEvent){
    var r = obj.detachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be removed");
  }
}

/**
 * Code below taken from - http://www.evolt.org/article/document_body_doctype_switching_and_more/17/30655/
 *
 * Modified 4/22/04 to work with Opera/Moz (by webmaster at subimage dot com)
 *
 * Gets the full width/height because it's different for most browsers.
 */
function getViewportHeight() {
	if (window.innerHeight !== undefined) {
		return window.innerHeight;
	}
	if (document.compatMode === 'CSS1Compat') {
		return document.documentElement.clientHeight;
	}
	if (document.body) {
		return document.body.clientHeight;
	}

	return undefined; 
}

function getViewportWidth() {
	if (window.innerWidth !== undefined) {
		return window.innerWidth;
	}
	if (document.compatMode === 'CSS1Compat') {
		return document.documentElement.clientWidth;
	}
	if (document.body) {
		return document.body.clientWidth;
	}
	
	return undefined;
}

/**
 * Gets the real scroll top
 */
function getScrollTop() {
	if (self.pageYOffset) // all except Explorer
	{
		return self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
		// Explorer 6 Strict
	{
		return document.documentElement.scrollTop;
	}
	else if (document.body) // all other Explorers
	{
		return document.body.scrollTop;
	}
	return undefined;
}

function getScrollLeft() {
	if (self.pageXOffset) // all except Explorer
	{
		return self.pageXOffset;
	}
	else if (document.documentElement && document.documentElement.scrollLeft)
		// Explorer 6 Strict
	{
		return document.documentElement.scrollLeft;
	}
	else if (document.body) // all other Explorers
	{
		return document.body.scrollLeft;
	}
	return undefined;
}

// Popup code
var gPopupMask = null;
var gPopupContainer = null;
var gPopFrame = null;
var gReturnFunc;
var gPopupIsShown = false;
var gDefaultPage = "lightbox/subModalLoading.html";  // Document must have this title: 'Loading...'!!!
var gHideSelects = false;
var gReturnVal = null;

var gTabIndexes = [];
// Pre-defined list of tags we want to disable/enable tabbing into
var gTabbableTags = [];
gTabbableTags[0] = "A";
gTabbableTags[1] = "BUTTON";
gTabbableTags[2] = "TEXTAREA";
gTabbableTags[3] = "INPUT";
gTabbableTags[4] = "IFRAME";	

// Tab key trap. If popup is shown and key was [TAB], suppress it.
// @argument e - event - keyboard event that caused this function to be called.
function keyDownHandler(e) {
    if (gPopupIsShown && e.keyCode === 9) {
		return false;
	}
}

// If using Mozilla or Firefox, use Tab-key trap.
if (!document.all) {
	document.onkeypress = keyDownHandler;
}

 /**
 * Sets the size of the popup mask.
 *
 */
function setMaskSize() {
	var theBody = document.getElementsByTagName("BODY")[0];
			
	var fullHeight = getViewportHeight();
	var fullWidth = getViewportWidth();
	var popHeight;
	var popWidth;
	
	// Determine what's bigger, scrollHeight or fullHeight / width
	if (fullHeight > theBody.scrollHeight) {
		popHeight = fullHeight;
	} else {
		popHeight = theBody.scrollHeight;
	}
	
	if (fullWidth > theBody.scrollWidth) {
		popWidth = fullWidth;
	} else {
		popWidth = theBody.scrollWidth;
	}
	
	gPopupMask.style.height = popHeight + "px";
	gPopupMask.style.width = popWidth + "px";
}

function centerPopWin(width, height) {
	if (gPopupIsShown === true) {
		if (width === null || isNaN(width)) {
			width = gPopupContainer.offsetWidth;
		}
		if (height === null) {
			height = gPopupContainer.offsetHeight;
		}
		
		var theBody = document.getElementsByTagName("BODY")[0];
		var scTop = parseInt(getScrollTop(), 10);
		var scLeft = parseInt(theBody.scrollLeft, 10);

		setMaskSize();

		var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);

		var fullHeight = getViewportHeight();
		var fullWidth = getViewportWidth();
		
		// Set widt of middle parts (exclude left and right part):
		document.getElementById("popupTitleBarCenter").style.width = width - 64 + "px";
		document.getElementById("popupBottomCenter").style.width = width - 16 + "px";
		
		gPopupContainer.style.top = (scTop + ((fullHeight - (height+titleBarHeight)) / 2)) + "px";
		gPopupContainer.style.left =  (scLeft + ((fullWidth - width) / 2)) + "px";
	}
}
addEvent(window, "resize", centerPopWin);
addEvent(window, "scroll", centerPopWin);
window.onscroll = centerPopWin;

// For IE.  Go through predefined tags and disable tabbing into them.
function disableTabIndexes() {
	if (document.all) {
		var i = 0;
		var j;
		for (j = 0; j < gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
			var k;
			for (k = 0 ; k < tagElements.length; k++) {
				gTabIndexes[i] = tagElements[k].tabIndex;
				tagElements[k].tabIndex="-1";
				i++;
			}
		}
	}
}

// For IE. Restore tab-indexes.
function restoreTabIndexes() {
	if (document.all) {
		var i = 0;
		var j;
		for (j = 0; j < gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
			var k;
			for (k = 0 ; k < tagElements.length; k++) {
				tagElements[k].tabIndex = gTabIndexes[i];
				tagElements[k].tabEnabled = true;
				i++;
			}
		}
	}
}

/**
 * Hides all drop down form select boxes on the screen so they do not appear above the mask layer.
 * IE has a problem with wanted select form tags to always be the topmost z-index or layer
 *
 * Thanks for the code Scott!
 */
function hideSelectBoxes() {
  var x = document.getElementsByTagName("SELECT");
  var i;

  for (i = 0; x && i < x.length; i++) {
    x[i].style.visibility = "hidden";
  }
}

/**
 * Makes all drop down form select boxes on the screen visible so they do not 
 * reappear after the dialog is closed.
 * 
 * IE has a problem with wanting select form tags to always be the 
 * topmost z-index or layer.
 */
function displaySelectBoxes() {
  var x = document.getElementsByTagName("SELECT");
  var i;
  
  for (i = 0; x && i < x.length; i++){
    x[i].style.visibility = "visible";
  }
}

/**
	* @argument width - int in pixels
	* @argument height - int in pixels
	* @argument url - url to display
	* @argument returnFunc - function to call when returning true from the window.
	*/
function showPopWin(url, width, height, returnFunc) {
	gPopupIsShown = true;
	disableTabIndexes();
	gPopupMask.style.display = "block";
	gPopupContainer.style.display = "block";
	// calculate where to place the window on screen
	centerPopWin(width, height);
	
	var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);

	gPopupContainer.style.width = width + "px";
	gPopupContainer.style.height = (height+titleBarHeight) + "px";
	
	setMaskSize();

	// need to set the width of the iframe to the title bar width because of the dropshadow
	// some oddness was occuring and causing the frame to poke outside the border in IE6
	gPopFrame.style.width = parseInt(document.getElementById("popupTitleBar").offsetWidth, 10) + "px";
	gPopFrame.style.height = (height) + "px";
	
	// set the url
	gPopFrame.src = url;
	
	gReturnFunc = returnFunc;
	// for IE
	if (gHideSelects === true) {
		hideSelectBoxes();
	}
	
	window.setTimeout("setPopTitle();", 600);
}

/**
 * Initializes popup code on load.	
 */
function initPopUp() {
	// Add the HTML to the body
	var theBody = document.getElementsByTagName('BODY')[0];
	var popmask = document.createElement('div');
	popmask.id = 'popupMask';
	var popcont = document.createElement('div');
	popcont.id = 'popupContainer';
	popcont.innerHTML =
		'<div id="popupInner">' +
			'<div id="popupTitleBar">' +
				'<span id="popupTitleBarLeft">&nbsp;</span>' +
				'<span id="popupTitleBarCenter">&nbsp;</span>' +
				'<span id="popupTitleBarRight" onClick="javascript:hidePopWin(false)">&nbsp;</span>' +
			'</div>' +
			'<iframe src="'+ gDefaultPage +'" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
			'<div id="popupBottom">' +
				'<span id="popupBottomLeft">&nbsp;</span>' +
				'<span id="popupBottomCenter">&nbsp;</span>' +
				'<span id="popupBottomRight">&nbsp;</span>' +
			'</div>' +
		'</div>';
	
	/*	'<div id="popupInner">' +
			'<div id="popupTitleBar">' +
				'<div id="popupTitle"></div>' +
				'<div id="popupControls">' +
					'<img src="close.png" onclick="hidePopWin(false);" id="popCloseBox" />' +
				'</div>' +
			'</div>' +
			'<iframe src="'+ gDefaultPage +'" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
		'</div>';
	*/
	theBody.appendChild(popmask);
	theBody.appendChild(popcont);
	
	gPopupMask = document.getElementById("popupMask");
	gPopupContainer = document.getElementById("popupContainer");
	gPopFrame = document.getElementById("popupFrame");	
	
	if (window.navigator.appVersion.indexOf("MSIE") > -1 && 
      parseInt(window.navigator.appVersion.split("MSIE")[1], 10) <= 6) {
		gHideSelects = true;
	}
	
	// Add onclick handlers to 'a' elements of class submodal or submodal-width-height
	var elms = document.getElementsByTagName('a');
	var i;
	for (i = 0; i < elms.length; i++) {
		if (elms[i].className.indexOf("submodal") === 0) { 
			elms[i].onclick = function(){
				// default width and height
				var width = 400;
				var height = 200;

                // Parse out optional width and height from className
                var params = this.className.split('-');
                if (params.length >= 3)
                {
                    width = parseInt(params[1], 10);
                    height = parseInt(params[2], 10);
                }
                showPopWin(this.href, width, height, null);
                return false;
            };
		}
	}
}
addEvent(window, "load", initPopUp);

/**
 * @argument callReturnFunc - bool - determines if we call the return function specified
 * @argument returnVal - anything - return value 
 */
function hidePopWin(callReturnFunc) {
	gPopupIsShown = false;
	var theBody = document.getElementsByTagName("BODY")[0];
	theBody.style.overflow = "";
	restoreTabIndexes();
	if (gPopupMask === null) {
		return;
	}
	gPopupMask.style.display = "none";
	gPopupContainer.style.display = "none";
	if (callReturnFunc === true && gReturnFunc !== null) {
		// Set the return code to run in a timeout.
		// Was having issues using with an Ajax.Request();
		gReturnVal = window.frames.popupFrame.returnVal;
		window.setTimeout('gReturnFunc(gReturnVal);', 1);
	}
	// display all select boxes
	if (gHideSelects === true) {
		displaySelectBoxes();
	}
}

/**
 * Sets the popup title based on the title of the html document it contains.
 * Uses a timeout to keep checking until the title is valid.
 */
/*function setPopTitle() {
	//return;
	if (window.frames["popupFrame"].document.title == null) {
		window.setTimeout("setPopTitle();", 10);
	} else {
		document.getElementById("popupTitle").innerHTML = window.frames["popupFrame"].document.title;
	}
}*/
/**
  Replacement from http://code.google.com/p/submodal/issues/detail?id=1
 */
function setPopTitle()
{
	if (window.frames.popupFrame.document.title === null || window.frames.popupFrame.document.title === "Loading...")
	{
		window.setTimeout("setPopTitle();", 25);
	}
	else
	{
		document.getElementById("popupTitleBarCenter").innerHTML = window.frames.popupFrame.document.title;
	}
}