// Is there jQuery?
    if (typeof jQuery == 'undefined') {
        alert("De DS Verzekeringen plugin needs the jQuery library to function");
    }

    /**
    * Receiver
    *
    * Initialize an event listener on the window
    * that listens for messages send by the iframe.
    *
    * When the message event is triggered the iframe
    * height is ajusted. In the case that the browser
    * does not support the postMessage functionality
    * the height of the iframe is set to defaultHeight.
    *
    * @version 1.1
    * @date 11/05/2015
    * @author Frank Bonnet
    */
        (function($) {

        // Start and fallback height
        var DefaultHeight = 1000;
            
        // Read script src
        if ($("script#receiver").length == 1) {
            Script = $("script#receiver");
            Script.removeAttr("id"); // Next script keeps working
            Script = Script[0];
        } else {
            Scripts = document.getElementsByTagName('script');
            Script = Scripts[Scripts.length - 1];
        }

            ScriptSrc = Script.src;

        /**
	     * Read a named param from the url
	     *
	     * @var param ParamName
	     */
        jQuery.UrlParam = function(ParamName, QueryString){
            var results = new RegExp('[\?&]' + ParamName + '=([^&#]*)').exec(QueryString);
            if (results==null){
                return null;
            }
            else{
                return results[1] || 0;
            }
        }

        /**
         * Read a named param from the url
         *
         * @var param DefaultValue
         */
        jQuery.ReadUrlParam = function(ParamName, DefaultValue) {
            var Response;
            var ParamValue = decodeURIComponent(jQuery.UrlParam(ParamName, window.location.href));

            if (null != ParamValue && 'null' != ParamValue) {
                Response = ParamValue;
            } else {
                Response = DefaultValue;
            }

            return Response;
        }

        /**
         * Read a named param from the script src
         *
         * @var param DefaultValue
         */
        jQuery.ReadScriptParam = function(ParamName, DefaultValue) {
            var Response;
            var ParamValue = decodeURIComponent(jQuery.UrlParam(ParamName, ScriptSrc));

            if (null != ParamValue && 'null' != ParamValue) {
                Response = ParamValue;
            } else {
                Response = DefaultValue;
            }

            return Response;
        }

        /**
         * Read a named param from the url
         * or else from the script source
         *
         * @var param DefaultValue
         */
        jQuery.ReadParam = function(ParamName, DefaultValue) {
            var Response;
            var ParamValue;

            // Try to read from url
            ParamValue = decodeURIComponent(jQuery.UrlParam(ParamName, window.location.href));
            if (null != ParamValue && 'null' != ParamValue) {
                Response = ParamValue;
            }

            if (null == Response) {

                // Try to read from script src
                ParamValue = decodeURIComponent(jQuery.UrlParam(ParamName, ScriptSrc));
                if (null != ParamValue && 'null' != ParamValue) {
                    Response = ParamValue;
                }

                else {
                    // Not in script src and not in url
                    Response = DefaultValue;
                }
            }

            return Response;
        }

        /**
         * Get the default height from url, script src or back-up server set
         */
        jQuery.GetDefaultHeight = function() {
            var Response;

            // Try to read from url
            ParamValue = decodeURIComponent(jQuery.ReadParam("DefaultHeight", DefaultHeight));
            if (null != ParamValue && 'null' != ParamValue) {
                Response = ParamValue;
            }

            return Response;
        }

        /**
	     * Resize the iframe
	     *
	     * @var param frame height
	     */
        jQuery.ResizeFrame = function(height) {
            jQuery("#insurance_frame").height(height);
        }

        /**
	     * Scroll to the top of the iframe
	     */
        jQuery.ScrollFrameTop = function() {
            jQuery('html, body').animate({
                scrollTop: jQuery("#insurance_frame").offset().top
            });
        }

        /**
	     * Open a link
	     *
	     * @var location to go to
         * @var target _blank|_self
	     */
        jQuery.OpenLink = function(location, target) {
            if (target == "_blank") {
                window.open(location);
            } else {
                window.location = location;
            }
        }

        /**
	     * Called by the message event lisener
	     *
	     * Checks if event.origin is allowed in the
	     * AcceptedOrigins array;
	     */
        jQuery.ReceiveMessage = function(event) {
            if (event.data.id == "ResizeFrame") {
                jQuery.ResizeFrame(parseInt(event.data.height));
            }

            else if (event.data.id == "OpenLink") {
                jQuery.OpenLink(event.data.location, event.data.target);
            }

            else if (event.data.id == "ScrollFrameTop") {
                jQuery.ScrollFrameTop();
            }
        }

        /**
	     * Read the AdFrameSource param from the url and
	     * append the dealerid if not present in the querystring
	     *
	     * @var param DefaultValue
	     */
        jQuery.GetFrameSource = function(DefaultValue) {
            var FrameSource = jQuery.ReadUrlParam("FrameSource", DefaultValue);
            var Params = {
                Theme: jQuery.ReadParam("Theme", null)
            };

            var _stylesheet = jQuery.ReadParam("Stylesheet", null);
            if (null == _stylesheet) {
                Params.StyleSheet = _stylesheet;
            }

            var _apiname = jQuery.ReadParam("ApiName", null);
            if (null != _apiname) {
                Params.ApiName = _apiname;
            }

            var _dealerId = jQuery.ReadParam("DealerId", null);
            if (null != _dealerId) {
                Params.DealerId = _dealerId;
            }

            if (null == jQuery.UrlParam("Layout", FrameSource)) {
                Params.Layout = jQuery.ReadScriptParam("Layout", "Frame");
            }

            if (null == jQuery.ReadParam("LicensePlate", FrameSource)) {
                Params.LicensePlate = jQuery.ReadScriptParam("LicensePlate", "");
            }

            FrameSource += (FrameSource.indexOf('?') >= 0 ? '&' : '?') + jQuery.param(Params);
            return FrameSource;
        }

            // Write iframe

        document.write('<iframe id="insurance_frame" seamless="seamless" width="100%" style="border:none; overflow:hidden; height:' + jQuery.GetDefaultHeight() + 'px" src="' + jQuery.GetFrameSource("https://verzekeringen.dealerservices.eu/kenteken/?ref=8149") + '&iframe=true"></iframe>');

        /**
	     * If browser does can't post a message fallback to
	     * the default height (child cannot post messages).
	     *
	     * Otherwise add an eventlistener to the window that
	     * listens for the ReceiveMessage event.
	     */
        if (!window["postMessage"]) {
            jQuery.ResizeFrame(DefaultHeight);
        } else {
            if (window.addEventListener) {
                // Standard
                window.addEventListener("message", jQuery.ReceiveMessage);
            } else {
                // Support ie8
                window.attachEvent("onmessage", jQuery.ReceiveMessage);
            }
        }
      })(jQuery);