/**
 * SUBMODAL v1.5
 * Used for displaying DHTML only popups instead of using buggy modal windows.
 *
 * By Seth Banks
 * 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://www.subimage.com/dhtml/subModal
 * 
 *
 * This code is free for you to use anywhere, just keep this comment block.
 */

// Popup code
var gPopupMask = null;
var gPopupContainer = null;
var gPopFrame = null;
var gReturnFunc;
var gPopupIsShown = false;
var gDefaultPage = "about:blank";
var gHideSelects = false;
var gReturnVal = null;

var gTabIndexes = new Array();
// Pre-defined list of tags we want to disable/enable tabbing into
var gTabbableTags = new Array("A","BUTTON","TEXTAREA","INPUT","IFRAME");	

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



/**
 * Initializes popup code on load.	
 */
function initPopUp() 
{
	// Add the HTML to the body
	theBody = document.getElementsByTagName('BODY')[0];
	popmask = document.createElement('div');
	popmask.id = 'popupMask';
	popcont = document.createElement('div');
	popcont.id = 'popupContainer';

	popcont.innerHTML = '' +
		'<div id="popupInner">' +
		'	<table border="0" width="100%" cellpadding="0" cellspacing="0" style="opacity: 1.0;filter: alpha(opacity=85);">' +
		'	<tr>' +
		'		<td rowspan="2" colspan="2" width="8" height="8"><img src="images/corner_black_tl.gif" border="" width="8" height="8" alt="" /></td>' +
		'		<td bgcolor="#ffffff" width="100%" height="1"><img src="images/transparent.gif" border="0" width="100%" height="1" alt="" /></td>' +
		'		<td rowspan="2" colspan="2" width="8" height="8"><img src="images/corner_black_tr.gif" border="" width="8" height="8" alt="" /></td>' +
		'	</tr>' +
		'	<tr><td bgcolor="#eeeeee" width="100%" height="7"><img src="images/transparent.gif" border="0" width="100%" height="7" alt="" /></td></tr>' +
		'	<tr>' +
		'		<td bgcolor="#ffffff" width="1" height="100%"><img src="images/transparent.gif" border="0" width="1" height="100%" alt="" /></td>' +
		'		<td bgcolor="#eeeeee" width="7" height="100%"><img src="images/transparent.gif" border="0" width="7" height="100%" alt="" /></td>' +
		'		<td bgcolor="#ffffff" width="100%" valign="top" align="center">' +
		'' +
		'			<table border="1" width="100%" height="100%" cellpadding="0" cellspacing="0">' +
		'			<tr>' +
		'				<td height="25" background="images/background_gradient_5.gif" class="clsWebText11ptBold">WNG Liability Waiver</td>' +
		'				<td height="25" background="images/background_gradient_5.gif" id="tdClose" onMouseOver="javascript:changeCloseBackground(true);" onMouseOut="javascript:changeCloseBackground(false);"><a href="javascript:hidePopWin(true);"><img src="images/close_white.gif" border="0" id="popCloseBox" /></a></td>' +
		'			</tr>' +
		'			<tr><td colspan="2"><iframe src="'+ gDefaultPage +'" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe></td></tr>' +
		'			</table>' +
		'' +
		'		</td>' +
		'		<td bgcolor="#eeeeee" width="7" height="100%"><img src="images/transparent.gif" border="0" width="7" height="100%" alt="" /></td>' +
		'		<td bgcolor="#ffffff" width="1" height="100%"><img src="images/transparent.gif" border="0" width="1" height="100%" alt="" /></td>' +
		'	</tr>' +
		'	<tr>' +
		'		<td rowspan="2" colspan="2" width="8" height="8"><img src="images/corner_black_bl.gif" border="" width="8" height="8" alt="" /></td>' +
		'		<td bgcolor="#eeeeee" width="100%" height="8"><img src="images/transparent.gif" border="0" width="100%" height="7" alt="" /></td>' +
		'		<td rowspan="2" colspan="2" width="8" height="8"><img src="images/corner_black_br.gif" border="" width="8" height="8" alt="" /></td>' +
		'	</tr>' +
		'	<tr><td bgcolor="#ffffff" width="100%" height="1"><img src="images/transparent.gif" border="0" width="100%" height="1" alt="" /></td></tr>' +
		'	</table>' +
		'</div>';


//		'			<div id="popupTitleBar">' +
//		'				<div id="popupTitle">WNG Liability Waiver</div>' +
//		'				<div id="popupControls">' +
//		'					<img src="images/close_white.gif" onclick="hidePopWin(true);" id="popCloseBox" />' +
//		'				</div>' +
//		'			</div>' +
//		'			<iframe src="'+ gDefaultPage +'" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +

/*
		'			<table border="0" width="100%" height="100%" cellpadding="0" cellspacing="0">' +
		'			<tr>' +
		'				<td>WNG Liability Waiver' +
		'				</td>' +
		'				<td><img src="images/close_white.gif" onclick="hidePopWin(true);" id="popCloseBox" />' +
		'				</td>' +
		'			</tr>' +
		'			<tr>' +
		'				<td colspan='2'><iframe src="'+ gDefaultPage +'" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
		'				</td>' +
		'			</tr>' +
		'			</table>' +
*/

	theBody.appendChild(popmask);
	theBody.appendChild(popcont);
	
	gPopupMask = document.getElementById("popupMask");
	gPopupContainer = document.getElementById("popupContainer");
	gPopFrame = document.getElementById("popupFrame");	
	
	// check to see if this is IE version 6 or lower. hide select boxes if so
	// maybe they'll fix this in version 7?
	var brsVersion = parseInt(window.navigator.appVersion.charAt(0), 10);

	if (brsVersion <= 6 && window.navigator.userAgent.indexOf("MSIE") > -1) 
	{
		gHideSelects = true;
	}
	
	// Add onclick handlers to 'a' elements of class submodal or submodal-width-height
	var elms = document.getElementsByTagName('a');

	for (i = 0; i < elms.length; i++) 
	{
		if (elms[i].className.indexOf("submodal") == 0) { 
			// var onclick = 'function (){showPopWin(\''+elms[i].href+'\','+width+', '+height+', null);return false;};';
			// elms[i].onclick = eval(onclick);
			elms[i].onclick = function(){
				// default width and height
				var width = 400;
				var height = 200;
				// Parse out optional width and height from className
				params = this.className.split('-');
				if (params.length == 3) {
					width = parseInt(params[1]);
					height = parseInt(params[2]);
				}
				showPopWin(this.href,width,height,null); return false;
			}
		}
	}
}

addEvent(window, "load", initPopUp);

function changeCloseBackground(bShow)
{
	document.getElementById('tdClose').style.backgroundImage='url(images/' + ((bShow) ? 'background_gradient_6' : 'background_gradient_5')  + '.gif)';
}

 /*
	* @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.
	* @argument showCloseBox - show the close box - default true
*/

function showPopWin(url, width, height, returnFunc, showCloseBox) 
{
//alert('1');

	// show or hide the window close widget
	if (showCloseBox == null || showCloseBox == true) {
		document.getElementById("popCloseBox").style.display = "block";
	} else {
		document.getElementById("popCloseBox").style.display = "none";
	}

//alert('2');
	gPopupIsShown = true;
	disableTabIndexes();
	gPopupMask.style.display = "block";
	gPopupContainer.style.display = "block";
	// calculate where to place the window on screen

//alert('3');
	centerPopWin(width, height);

	var titleBarHeight = 25; // CUSTOM CHANGE - JC - parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);

//alert('4');
	gPopupContainer.style.width = width + "px";
	gPopupContainer.style.height = (height+titleBarHeight) + "px";

//alert('5');
	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
//alert('6');
	gPopFrame.style.width = 350; // CUSTOM CHANGE - JC - parseInt(document.getElementById("popupTitleBar").offsetWidth, 10) + "px";
	gPopFrame.style.height = (height) + "px";

//alert('7');
	// set the url
	gPopFrame.src = url;

//alert('8');
	gReturnFunc = returnFunc;
	// for IE

//alert('9');
	if (gHideSelects == true) 
	{
		hideSelectBoxes();
	}

//alert('10');
	window.setTimeout("setPopTitle();", 600);

//alert('11');
}



var gi = 0;

function centerPopWin(width, height) 
{
	if (gPopupIsShown == true) 
	{
		if (width == null || isNaN(width)) 
		{
			width = gPopupContainer.offsetWidth;
		}

		if (height == null) 
		{
			height = gPopupContainer.offsetHeight;
		}
		
		//var theBody = document.documentElement;
		var theBody = document.getElementsByTagName("BODY")[0];
		//theBody.style.overflow = "hidden";
		var scTop = parseInt(getScrollTop(),10);
		var scLeft = parseInt(theBody.scrollLeft,10);
	
		setMaskSize();
		
		//window.status = gPopupMask.style.top + " " + gPopupMask.style.left + " " + gi++;
		
		var titleBarHeight = 25; // CUSTOM CHANGE - JC - parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);
		
		var fullHeight = getViewportHeight();
		var fullWidth = getViewportWidth();
		
		gPopupContainer.style.top = (scTop + ((fullHeight - (height+titleBarHeight)) / 2)) + "px";
		gPopupContainer.style.left =  (scLeft + ((fullWidth - width) / 2)) + "px";
		//alert(fullWidth + " " + width + " " + gPopupContainer.style.left);
	}
}

addEvent(window, "resize", centerPopWin);
addEvent(window, "scroll", centerPopWin);
window.onscroll = centerPopWin;



/**
 * Sets the size of the popup mask.
 *
 */
function setMaskSize() {
	var theBody = document.getElementsByTagName("BODY")[0];
			
	var fullHeight = getViewportHeight();
	var fullWidth = getViewportWidth();
	
	// 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";
}

/**
 * @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);
	}
	gPopFrame.src = gDefaultPage;
	// 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;
	}
	*/
}

// Tab key trap. iff 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;
}

// For IE.  Go through predefined tags and disable tabbing into them.
function disableTabIndexes() {
	if (document.all) {
		var i = 0;
		for (var j = 0; j < gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
			for (var 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;
		for (var j = 0; j < gTabbableTags.length; j++) {
			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
			for (var 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() {
	for(var i = 0; i < document.forms.length; i++) {
		for(var e = 0; e < document.forms[i].length; e++){
			if(document.forms[i].elements[e].tagName == "SELECT") {
				document.forms[i].elements[e].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 wanted select form tags to always be the topmost z-index or layer
*/
function displaySelectBoxes() {
	for(var i = 0; i < document.forms.length; i++) {
		for(var e = 0; e < document.forms[i].length; e++){
			if(document.forms[i].elements[e].tagName == "SELECT") {
			document.forms[i].elements[e].style.visibility="visible";
			}
		}
	}
}