/**
 * 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.
 */
function resizeIframe(x)
{
	try
	{
		x.style.height=x.contentWindow.document.body.offsetHeight+35+'px'
	}
	catch(x){}
}

// Popup code
var gPopupMask = null;
var gPopupContainer = null;
var gPopFrame = null;
var gReturnFunc;
var gPopupIsShown = false;
var gDefaultPage = "js/submodal/loading.php";
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(titlePup, closeButtonSrc) {

	// 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">' +
		
			'<div class="Box" id="popupTitleBar">' +
				'<div class="title clearfix" style="padding:10px 0 6px 0; height:auto;">' +
					'<div id="popupTitle" style="font-weight:bold !important;">' + titlePup +'</div>' +
	
					'<div id="popupControls">' +
	
						'<img src="' + closeButtonSrc + '" onclick="hidePopWin(false);" id="popCloseBox" />' +
	
					'</div>' +
				'</div>' +
			
				'<div class="content" style="padding:13px 6px 0 6px; overflow:visible;">' +
					'<iframe onload="resizeIframe(this);" src="'+ gDefaultPage +'" style="height:100%;background-color:transparent;" scrolling="off" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame"></iframe>' +
				'</div>' +
			'</div>' +
		'</div>';

	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);



 /**

	* @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) {
	// 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";
	}

	gPopupIsShown = true;
	disableTabIndexes();
	gPopupMask.style.display = "block";
	gPopupContainer.style.display = "block";
	gPopupContainer.style.zIndex = '1000';
	// 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 = 'auto';//(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);

}



//

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

		var fullHeight = getViewportHeight();
		var fullWidth = getViewportWidth();
		
		
		titleBarHeight = 0;
		gPopupContainer.style.top = (20 + 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";

			}

		}

	}

}