// Initialize variables
var submitCount = 0;



/// Functions for BlueButton stuff

function blueButtonsOnload() {
	// Find all buttons with class BlueButton, and apply click events to them.
	var blueButtonElements = getElementsByClassName(document, '*', 'BlueButton');

	for (i = 0; i < blueButtonElements.length; i++) {
		blueButtonElements[i].style.cursor = 'pointer';
		blueButtonElements[i].onclick = function() {
			performActionOnParentTag(this, 'FORM', 'submit');
		}
	}
}

function performActionOnParentTag(objElement, strTagName, strAction) {
	if (objElement != null) {
		if (objElement.parentNode != null &&
         objElement.parentNode.tagName == strTagName) {
			switch (strAction) {
				case 'submit':
					objElement.parentNode.submit();
					break;
			}
		}
		else {
			performActionOnParentTag(objElement.parentNode, strTagName, strAction);
		}
	}
}



/// Functions for Google skyscraper positioning

function googleSkyscraperOnload() {
	// Positioning of Google Skyscraper
	var eWrapper = document.getElementById('Wrapper');
	var wrapperLeftPosition = getElementLeft('Wrapper');
	var eSkyscraper = document.getElementById('GoogleAdmanagerSkyscraper');
	var skyscraperLeftPosition = wrapperLeftPosition + eWrapper.clientWidth;

	if (skyscraperLeftPosition + 120 <= getViewportWidth()) {
		eSkyscraper.className = '';
		ShowSkyscraper();
		eSkyscraper.className = '';
	}
}


// Track resizes
window.onresize = function() {

	var eSkyscraper = document.getElementById('GoogleAdmanagerSkyscraper');
	if (eSkyscraper != null) {
		eSkyscraper.style.left = getElementLeft('Wrapper') + 'px';
		ShowSkyscraper();
	}
}

// Show skyscraper
function ShowSkyscraper() {

	var eWrapper = document.getElementById('Wrapper');
	var eSkyscraper = document.getElementById('GoogleAdmanagerSkyscraper');
	if (eSkyscraper != null) {
		var wrapperLeftPosition = getElementLeft('Wrapper');
		var skyscraperLeftPosition = wrapperLeftPosition + eWrapper.clientWidth;
		eSkyscraper.style.left = (skyscraperLeftPosition + 3) + 'px';
	}
}

// Get element left
function getElementLeft(elementId) {

	var element;
	if (document.getElementById) {
		var element = document.getElementById(elementId);
	}
	else if (document.all) {
		var element = document.all[elementId];
	}

	xPos = element.offsetLeft;
	parentElement = element.parentNode;
	while (parentElement.tagName != "BODY" && parentElement != null) {
		xPos += parentElement.offsetLeft;
		parentElement = parentElement.parentNode;
	}

	return xPos;
}

// Get viewport width
function getViewportWidth() {
	if (window.innerWidth != window.undefined)
		return window.innerWidth;

	if (document.compatMode == 'CSS1Compat')
		return document.documentElement.clientWidth;

	if (document.body)
		return document.body.clientWidth;

	return window.undefined;
}



/// Whitespace functions

// whitespace characters
var WhitespaceChars = " \t\n\r";

// Strip whitespace from the left
function TrimLeft(s) {
	// Search through string's characters one by one.
	var returnString = "";
	var length = s.length;
	var c;
	for (var i = 0; i < length; i++) {
		// Check that current character isn't whitespace.
		c = s.charAt(i);
		if (WhitespaceChars.indexOf(c) == -1) {
			returnString = s.substring(i, s.length - i);
			break;
		}
	}

	return returnString;
}

// Strip whitespace from the right
function TrimRight(s) {
	// Search through string's characters one by one.
	var returnString = "";
	var c;
	for (var i = s.length; i >= 0; i--) {
		// Check that current character isn't whitespace.
		c = s.charAt(i);
		if (WhitespaceChars.indexOf(c) != -1) {
			returnString = s.substring(0, i);
			break;
		}
	}

	return returnString;
}

// Strip Whitespaces around
function Trim(s) {
	return TrimRight(TrimLeft(s));
}



// GetElementsByClassName
function getElementsByClassName(oElm, strTagName, strClassName) {
	var arrElements = (strTagName == "*" && oElm.all) ? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;

	for (var i = 0; i < arrElements.length; i++) {
		oElement = arrElements[i];
		if (oRegExp.test(oElement.className)) {
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}



/// Bladeren popup
var eBladPopup;
function openBladWindow(pLocation) {
	if (eBladPopup != null) {
		if (!eBladPopup.closed)
			eBladPopup.focus();
	}

	eBladPopup = window.open(pLocation,
      "bladPopup",
      "top=" + ((screen.availHeight / 2) - (678 / 2)) +
      ",left=" + ((screen.availWidth / 2) - (955 / 2)) +
      ",width=955,height=678,resizable=0,toolbar=0,scrollbars=0,location=0,status=0,menubar=0");

	return void (0);
}

var newPopup = null;
function openPopup(pLocation, pHeight, pWidth) {
	if (pHeight == null)
		var pHeight = 550;

	if (pWidth == null)
		var pWidth = 500;

	if (newPopup && !newPopup.closed)
		newPopup.focus();

	else
		newPopup = window.open(pLocation, "popup",
                "top=" + ((screen.availHeight / 2) - (pHeight / 2)) +
                ",left=" + ((screen.availWidth / 2) - (pWidth / 2)) +
                ",width=" + pWidth + ",height=" + pHeight + ",resizable=0,toolbar=0," +
                "scrollbars=1,location=0,status=0,menubar=0");

	return void (0);
}



/// Image Popup


function ImagePopup(image, label) {
	imageObject = new Image();
	imageObject.src = (image);
	CheckImage(image, label);
}

function CheckImage(image, label) {
	if (imageObject.width != 0 && imageObject.height != 0) {
		OpenImagePopup(image, label);
	}
	else {
		command = "CheckImage( '" + image + "', '" + label + "' )";
		interval = setTimeout(command, 20);
	}
}

function OpenImagePopup(image, label) {

	var imageWidth = window.imageObject.width + 4;
	var imageHeight = window.imageObject.height + 4;

	if (!label)
		label = image;

	var imagePopupParameters = "width=" + imageWidth + ",height = " + imageHeight;
	imagePopupParameters += ",left=" + ((screen.width - imageWidth) / 2);
	imagePopupParameters += ",top=" + ((screen.height - imageHeight) / 2);
	// imagePopupParameters += ",scrollbars=1";

	var newwindow = window.open("", "imagePopupWindow", imagePopupParameters);

	if (newwindow.document.clear != null)
		newwindow.document.clear();
	newwindow.document.write("<html>\n\t<head>\n\t\t<title>" + label + "</title>\n");
	newwindow.document.write("\t\t<meta http-equiv=\"imagetoolbar\" content=\"no\">\n");
	newwindow.document.write("\t</head>\n\n\t<body style=\"margin:0;padding:0;\" onBlur=\"window.close();\"' scroll=\"auto\">\n");
	newwindow.document.write("\t\t<img src=\"" + image + "\" border=\"0\" onclick=\"javascript:window.close()\">\n");
	newwindow.document.write("\t</body>\n</html>\n");

	if (newwindow.document.focus)
		newwindow.document.focus();

	newwindow.document.close();

}



// Mijn Elektuur form

function usernameOnload(username, defaultText) {
	var usernameField = document.getElementById('username');

	if (usernameField != null) {
		if (username == "")
			username = defaultText;
		if (usernameField.value == "") {
			usernameField.value = username;

			usernameField.onfocus = function() {
				if (this.value == defaultText)
					this.value = '';
			}

			usernameField.onblur = function() {
				if (this.value == '')
					this.value = username;
			}
		}
	}
}



// Misc form functions

function SetFormAction(sFormId, sFormAction) {
	var eForm = document.getElementById(sFormId);
	var sCurrentFormAction = eForm.action;
	var sNewFormAction = "";

	// Strip current "(completed)" part from action
	var sCurrentFormActionSplit = sCurrentFormAction.split('-(');
	if (sCurrentFormActionSplit.length > 1)
		sCurrentFormActionSplit[sCurrentFormActionSplit.length - 1] = sCurrentFormActionSplit[sCurrentFormActionSplit.length - 1].split(')')[1];

	for (var i = 0; i < sCurrentFormActionSplit.length; i++) {
		if (i == sCurrentFormActionSplit.length - 1)
			sNewFormAction += sCurrentFormActionSplit[i];
		else
			sNewFormAction += "-(" + sCurrentFormActionSplit[i];
	}
	if (sNewFormAction.substring(0, 2) == "-(")
		sNewFormAction = sNewFormAction.substring(2);

	// Add new part to action
	var sNewFormActionSplit = sNewFormAction.split('.');
	sNewFormAction = "";
	for (var i = 0; i < sNewFormActionSplit.length; i++) {
		sNewFormAction += "." + sNewFormActionSplit[i];
		if (i == sNewFormActionSplit.length - 3)
			sNewFormAction += "-(" + sFormAction.replace(/ /g, '-') + ")";
	}
	sNewFormAction = sNewFormAction.substring(1);

	eForm.action = sNewFormAction;

}



// Hide pageflip ad if no banner

$(function() {
	// Check for iframe injected by Google DFP.
	if ($("#pageflip iframe") == null) {
		// If it's not there, there's no banner.
		$("#pageflip").hide();
	}
});