// Popup code

var gPopupMask = null;

var gPopupContainer = null;

var gPopFrame = null;

var gReturnFunc;

var gPopupIsShown = false;



var gHideSelects = false;





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">' +

			'<div id="popupTitleBar">' +

				'<div id="popupTitle"></div>' +

				'<div id="popupControls">' +

					'<img src="close.gif" onclick="hidePopWin(false);" id="popCloseBox" />' +

				'</div>' +

			'</div>' +

			'<iframe src="loading.swf" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%" position="absolute" z-index="100"></iframe>' +

		'</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";

	// 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);

}



//

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(theBody.scrollTop,10);

		var scLeft = parseInt(theBody.scrollLeft,10);

		

		gPopupMask.style.top = scTop + "px";

		gPopupMask.style.left = scLeft + "px";

	

		setMaskSize();

		

		//window.status = gPopupMask.style.top + " " + gPopupMask.style.left + " " + gi++;

		

		var titleBarHeight = 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) {

		gReturnFunc(window.frames["popupFrame"].returnVal);

	}

	gPopFrame.src = 'loading.swf';

	// 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";

			}

		}

	}

}