/**
 * 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 = "/includes/javascript/ewm_modal_window/loading.html";
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.	
 */
var popup_initalized = false;
function initPopUp() {
	// Add the HTML to the body
	if(popup_initalized) return;
	popup_initalized=true;
	
	theBody = document.getElementsByTagName('BODY')[0];
	popmask = document.createElement('div');
	popmask.style.display='none';
	popmask.id = 'popupMask';
	popcont = document.createElement('div');
	popcont.id = 'popupContainer';
	popcont.style.display='none';
	popcont.innerHTML = '' +
		'<div id="popupInner"><a name="top_tag" id="top_tag"></a>' +
			'<table width="100%" cellpadding="0" cellspacing="0" border="0" style="padding:0; margin:0;">' +
				'<tr id="popupTitleBar"  height="60">' +
					'<td id="overlay_top_left"  width="35">&nbsp;</td>' +
					'<td id="overlay_top_title" rowspan="2" align="left" nowrap valign="top" ><div id="popupTitle"></div></td>' +
					'<td id="overlay_top_title" rowspan="2" align="right" nowrap valign="top" width="230"><img src="blank.gif" onclick="document.frames(\'popupFrame\').focus(); document.frames(\'popupFrame\').print(); return false;"  id="popPrintBox" /><img  src="blank.gif" onclick="hidePopWin(false);" id="popCloseBox" /></td>' +
          
					//~ '<td id="overlay_top_title" rowspan="2" align="right" nowrap valign="top" width="230">' +
          //~ '<img src="blank.gif" onclick="' +
          //~ 'var fr = document.getElementsByTagName(\'iframe\')[\'popupFrame\']; ' +
          //~ ' alert(fr.printFrame); ' +
          //~ 'fr.printFrame(); //only works if there is a printFrame() function declared in the page loaded into the iframe.' +
          //~ 'return false;"  id="popPrintBox" /> ' +
          //~ '<img  src="blank.gif" onclick="hidePopWin(false);" id="popCloseBox" /></td>' +
					'<td id="overlay_top_right" width="35" >&nbsp;</td>' +
				'</tr>' +
				'<tr>' +
					'<td id="overlay_side_left" width="35">&nbsp;</td>' +
					'<td id="overlay_side_right" width="35">&nbsp;</td>' +
				'</tr>' +
				'<tr id="overlay_content_row">' +
					'<td id="overlay_side_left" width="35">&nbsp;</td>' +
					'<td id="overlay_center" colspan="2" valign="top"><div id="overlay_iframe_div"> <iframe src="'+ gDefaultPage +'" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame"></iframe></div></td>' +
					'<td id="overlay_side_right" width="35">&nbsp;</td>' +
				'</tr>' +
				'<tr>' +
					'<td id="overlay_bottom_left" width="35" height="36">&nbsp;</td>' +
					'<td id="overlay_bottom_center" colspan="2">&nbsp;</td>' +
					'<td id="overlay_bottom_right" width="35">&nbsp;</td>' +
				'</tr>' +
			'</table>' +
		'</div>';
	
	
	
	
	
	
	/*
	
		'<div id="popupInner">' +
			'<div id="popupTitleBar">' +
				'<div id="popupTitle"></div>' +
				'<div id="popupControls">' +
					'<img src="/includes/javascript/ewm_modal_window/close.gif" onclick="hidePopWin(false);" id="popCloseBox" />' +
				'</div>' +
			'</div>' +
			'<div id="popupContent" style="text-align:center;">' +
				'<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>' +
		'</div>';*/
	theBody.appendChild(popmask);
	theBody.appendChild(popcont);
	
	gPopupMask = $("popupMask");
	gPopupContainer = $("popupContainer");
	gPopFrame = $("popupFrame");	
	gPopFrameDiv = $("overlay_iframe_div");
	
	// 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, showPrintBox, title) {
	// show or hide the window close widget
	if (showCloseBox == null || showCloseBox == true) {
		$("popCloseBox").style.display = "";
	} else {
		$("popCloseBox").style.display = "none";
	}
	
	if (showPrintBox == null || showPrintBox == true) {
		$("popPrintBox").style.display = "";
	} else {
		$("popPrintBox").style.display = "none";
	}
	
	$("popupTitle").innerHTML=title;
	gPopupIsShown = true;
	disableTabIndexes();
	
	gPopupMask.style.display = "block";
	//gPopupContainer.style.visibility = "hidden";
	//Effect.Appear('popupMask',{duration:0.0,from:0.0,to:0.5 });
	gPopupContainer.style.display = "block";

	gPopFrameDiv.style.height = (height-80) + "px";
	$("overlay_content_row").style.height = (height-100) + "px";
	centerPopWin(width, height);
	
	var titleBarHeight = parseInt($("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($("popupTitleBar").offsetWidth, 10)-37) + "px";
	gPopFrame.style.height = (height-80) + "px";
	
	
	// set the url
	gPopFrame.src = url;
	
	gReturnFunc = returnFunc;
	// for IE
	if (gHideSelects == true) {
		hideSelectBoxes();
	}
	
	//Effect.Fade('popupContainer',{duration:0.0});
	//gPopupContainer.style.display = "block";
	
	window.setTimeout("setPopTitle();", 600);

//	gPopupContainer.style.display = "none";
//	gPopupContainer.style.visibility = "visible";
	

	
//	Effect.Appear('popupContainer',{duration:0.5 });
}

function show_next()
{
	
}
	
	
function finish_show()
{
	
	// calculate where to place the window on screen

}

//
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($("popupTitleBar").offsetHeight, 10);
		
		var fullHeight = getViewportHeight();
		var fullWidth = getViewportWidth();
		
		var tmptop = (scTop + ((fullHeight - (height+titleBarHeight)) / 2));
		var tmpleft =  (scLeft + ((fullWidth - width) / 2));

		if(tmptop<scTop) tmptop=scTop;
		if(tmpleft<scLeft) tmpleft=scLeft;
		
		gPopupContainer.style.top = tmptop+"px";
		gPopupContainer.style.left = tmpleft + "px"


		var arVersion = navigator.appVersion.split("MSIE")
		var version = parseFloat(arVersion[1])
		
		if ((version >= 5.5) && (document.body.filters) && false) 
		{
			 for(var i=0; i<document.images.length; i++)
			 {
					var img = document.images[i]
					var imgName = img.src.toUpperCase()
					if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
					{
						 var imgID = (img.id) ? "id='" + img.id + "' " : ""
						 var imgClass = (img.className) ? "class='" + img.className + "' " : ""
						 var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
						 var imgStyle = "display:inline-block;" + img.style.cssText 
						 if (img.align == "left") imgStyle = "float:left;" + imgStyle
						 if (img.align == "right") imgStyle = "float:right;" + imgStyle
						 if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
						 var strNewHTML = "<span " + imgID + imgClass + imgTitle
						 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
						 + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
						 + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
						 img.outerHTML = strNewHTML
						 i = i-1
					}
			 }
		}

		//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 {
		$("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";
			}
		}
	}
}