/**

 * POPUP WINDOW CODE v1.1

 * Used for displaying DHTML only popups instead of using buggy modal windows.

 *

 * By Seth Banks (webmaster at subimage dot com)

 * http://www.subimage.com/

 *

 * Contributions by Eric Angel (tab index code) and Scott (hiding/showing selects for IE users)

 *

 * 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 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() {

	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;

	}

}

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.

	*/



function showPopWin(url, width, height, returnFunc, alwaysCallReturn) {
    //aanpassing!
    url =  "dynamisch/"+ url;


	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";

	// 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();

	}

	

	if ( alwaysCallReturn ) {

		popupAlwaysCallReturnFunction();

	}



	window.setTimeout("setPopTitle();", 600);

}



// wanneer er ook bij het kruisje de return functie gebruikt moet worden

function popupAlwaysCallReturnFunction() {

    document.getElementById( 'modalCloseButton' ).href = "javascript:hidePopWin(true);";

}



//

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 fullHeight = getViewportHeight();

		var fullWidth = getViewportWidth();

		

		var theBody = document.documentElement;

		

		var scTop = parseInt(theBody.scrollTop,10);

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

		

		gPopupMask.style.height = fullHeight + "px";

		gPopupMask.style.width = fullWidth + "px";

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

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

		

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

		

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

		

		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;



/**

 * @argument callReturnFunc - bool - determines if we call the return function specified

 * @argument returnVal - anything - return value 

 */

function hidePopWin(callReturnFunc) {

	gPopupIsShown = false;

	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 = '';

	// 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( title ) {

	if ( title == undefined ) {

		/*if (window.frames["popupFrame"].document.title == null) {

			window.setTimeout("setPopTitle();", 10);

		} else {

			document.getElementById("popupTitle").innerHTML = window.frames["popupFrame"].document.title;

		}*/

	} else {

		document.getElementById("popupTitle").innerHTML = 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() {

    hideElement( document.getElementById( "flashmenu_host" ) );

	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() {
    showElement( document.getElementById( "flashmenu_host" ) );

	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";

			}

		}

	}

}