/**
 * 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 = "../loading.html";
var gHideSelects = false;
var gReturnVal = null;

var gModalCloseTitle = "Close Dialog";
var gModalCloseShowInTitle = 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"><img src="../ImagesV3/mini_logo.gif" style="padding-left: 5px;" /></div>' +
				'<div id="popupControls" >' +
				    '<a id="popTitleClose" href="" onclick="javascript:hidePopWin(false);return false;" class="anchMod" style="display: none ;color: white;">Close Dialog</a>' +
					'<img src="../imagesV3/submodalclose.gif" onclick="hidePopWin(false);" id="popCloseBox" class="imgMod" style="padding-top: 5px;" />' +
				'</div>' +
			'</div>' +
			'<iframe src="'+ gDefaultPage +'" style="width:100%;height:100%; background-color:transparent;" scrolling="no" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
			'<div style="text-align:center; padding-bottom: 10px;"></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
	*/
var gOriginalBodyOverflow;
var gOriginalHfy;
var gOriginalHfx;

function resizePopWin(width, height, returnFunc, showCloseBox) {

  if (document.all)
  {
     if (!document.documentElement.scrollLeft)
        gOriginalHfx = document.body.scrollLeft;
     else
        gOriginalHfx = document.documentElement.scrollLeft;
           
     if (!document.documentElement.scrollTop)
        gOriginalHfy = document.body.scrollTop;
     else
        gOriginalHfy = document.documentElement.scrollTop;
  }   
  else
  {
     gOriginalHfx = window.pageXOffset;
     gOriginalHfy = window.pageYOffset;
  }


	theBody = document.getElementsByTagName('BODY')[0];
	theHTML = document.getElementsByTagName('HTML')[0];
    theBody.style.overflow = "hidden"
    theHTML.style.overflow = "hidden"
    theBody.scroll = "no"
    
    

	// 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";
	
    //Try and center the loading image
    try
    {		
	     popupFrame.center();
	}
	catch(e)
	{
	}

	
	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);
}

function showPopWin(url, width, height, returnFunc, showCloseBox) {
    
  if (document.all)
  {
     if (!document.documentElement.scrollLeft)
        gOriginalHfx = document.body.scrollLeft;
     else
        gOriginalHfx = document.documentElement.scrollLeft;
           
     if (!document.documentElement.scrollTop)
        gOriginalHfy = document.body.scrollTop;
     else
        gOriginalHfy = document.documentElement.scrollTop;
  }   
  else
  {
     gOriginalHfx = window.pageXOffset;
     gOriginalHfy = window.pageYOffset;
  }


	theBody = document.getElementsByTagName('BODY')[0];
	theHTML = document.getElementsByTagName('HTML')[0];
    theBody.style.overflow = "hidden"
    theHTML.style.overflow = "hidden"
    theBody.scroll = "no"
    
   try
    {		
	   // 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";
		}   
	}
	catch(e)	{	}
	
	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();
	
    
    //Try and center the loading image
    try
    {		
	     popupFrame.center();
	}
	catch(e)
	{
	}


	// 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();
	}
	
	
    gPopTitleClose = document.getElementById("popTitleClose");	
	if (gModalCloseShowInTitle)
	{
	    gPopTitleClose.innerText = gModalCloseTitle;
	    gPopTitleClose.style.display = "";
	}

	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();
		
		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) {
 
 
 
 	
	if ( navigator.userAgent.indexOf("Opera") >= 0) 
	    gOriginalBodyOverflow="scroll";
	else
	    gOriginalBodyOverflow="auto";

	theBody = document.getElementsByTagName('BODY')[0];
	theHTML = document.getElementsByTagName('HTML')[0];
    theBody.style.overflow = gOriginalBodyOverflow
    theHTML.style.overflow = gOriginalBodyOverflow
    theBody.scroll = "yes"
    theBody.style.overflowX = "hidden";
    theHTML.style.overflowX = "hidden";

	gPopFrame.src =  "../loading.html";
	
    window.scrollTo(gOriginalHfx, gOriginalHfy);


	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;
	}
}

// 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 && e.keyCode == 9) || (e.which && e.which == 9))) {
        try
        {
            window.event.keyCode = 0;
            window.event.preventDefault();
            return false;
        }
        catch(e)
        {
            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";
			}
		}
	}
}

  /**   showTransMask()
    *   Author: R. Bolin (from various existing pieces of code)
    *   Date:   8/16/2006
    *
    *   Show semi-transparent mask to block any clicks from taking place.
    */
function showTransMask() {
    try
    {
	    theBody = document.getElementsByTagName('BODY')[0];
	    theHTML = document.getElementsByTagName('HTML')[0];

	    gPopupIsShown = true;
	    disableTabIndexes();
	    gPopupMask.style.display = "block";
	    setMaskSize();

	    if (gHideSelects == true) {
		    hideSelectBoxes();
	    }
	}
	catch(e) {}
}