function isValidNumber(a)
{ 
    return !isNaN(a) && !isNaN(parseFloat(a));
}

// inital set-up
function initialiseEmbed_SLIANZMemberDirectory()
{
    var thisScriptElement = document.scripts[document.scripts.length - 1];
    var parentElement = thisScriptElement.parentNode;
    
    var embedIFrame = document.createElement('iframe');

    var iframeAttributes = JSON.parse('{"src":"https://slianz.gecco.co.nz/g/api/embeds/SLIANZMemberDirectoryController/?Token=214b867bf7d038835d1af86c305e0580687f326275f9b3a8610060e3e997a90ab603afb9fd57fbbce2586c9b433d3a1dc324c148cd66a1db9005e9754b9f0cd8","frameborder":"1"}');
    for (var iframeAttribute in iframeAttributes) {
        if (Object.prototype.hasOwnProperty.call(iframeAttributes, iframeAttribute)) {
            embedIFrame.setAttribute(iframeAttribute, iframeAttributes[iframeAttribute]);
        }
    }

    if (false) {
        embedIFrame.onload = function() {
            var currentLocation = window.location.toString();
            var embedIndex = currentLocation.indexOf('#gembed');
            if (embedIndex > -1) {
                var embedLocation = currentLocation.substring(embedIndex + 7);
                embedIFrame.contentWindow.postMessage({InitialEmbedLocation: embedLocation});
            }
        };
    }

    embedIFrame.style.maxWidth = '100%';
    parentElement.appendChild(embedIFrame);

    // listen for messages from embedded iframe
    window.addEventListener('message', function (event) {
        if (event.data) {
            if (event.data.FrameWidthChanged !== undefined) {
                var frameWidth  = event.data.FrameWidthChanged;
                if (isValidNumber(frameWidth)) {
                    var frameBorder = parseInt(window.getComputedStyle(embedIFrame).getPropertyValue('border-width'), 10);
                    frameWidth += frameBorder * 2;
                }

                embedIFrame.setAttribute('width', frameWidth);
            }
            if (event.data.FrameHeightChanged !== undefined) {
                var frameHeight  = event.data.FrameHeightChanged;
                if (isValidNumber(frameHeight)) {
                    var frameBorder = parseInt(window.getComputedStyle(embedIFrame).getPropertyValue('border-width'), 10);
                    frameHeight += frameBorder * 2;
                }

                embedIFrame.setAttribute('height', frameHeight);
            }
            
            if (false) {
                if (event.data.FrameLinkClicked !== undefined) {
                    var linkClicked = event.data.FrameLinkClicked;

                    window.location = "#gembed" + linkClicked;
                }
            }
            }
    });

    
}

initialiseEmbed_SLIANZMemberDirectory();