var dnnModal = {
    load: function () {
        //This method prevents the popup from flashing before closing, also redirects the parent window.
        //parent and parent.parent needs to be assign to a varaible for Opera compatibility issues.
        var windowTop = parent;
        var parentTop = windowTop.parent;

        if (typeof (parentTop.$find) != "undefined") {
            if (location.href.indexOf('popUp') == -1 || windowTop.location.href.indexOf("popUp") > -1) {
                var popup = windowTop.$("#iPopUp");
                if (popup.dialog('isOpen') === true) {
                    popup.dialog("option", {
                        close: function (event, ui) { }
                    }).dialog('close');
                }
                windowTop.location.href = location.href;
            }
            else {
                windowTop.$("#iPopUp").dialog({ title: document.title });
            }
        }
    },

    show: function (url, showReturn, height, width) {
        var $modal = $("#iPopUp");
        if ($modal.length == 0) {
            $modal = $("<iframe id=\"iPopUp\" src=\"about:blank\" scrolling=\"auto\" frameborder=\"0\" ></iframe>");
            $(document).find('html').css('overflow', 'hidden');
            $(document).append($modal);
        }
        $modal[0].src = url;
        var windowTop = parent; //needs to be assign to a varaible for Opera compatibility issues.

        $modal.dialog({
            modal: true,
            autoOpen: true,
            dialogClass: "dnnFormPopup",
            position: "center",
            minWidth: width,
            minHeight: height,
            maxWidth: 1920,
            maxHeight: 1080,
            resizable: true,
            closeOnEscape: true,
            close: function (event, ui) {
                windowTop.location.reload();
                $(this).close();
            }
        })
        .width(width - 11)
        .height(height - 11);

        var $dnnToggleMax = $('<a href="#" class="dnnToggleMax"><span>Max</span></a>');
        $('.ui-dialog-title').after($dnnToggleMax);
        $dnnToggleMax.click(function (e) {
            e.preventDefault();

            var $window = $(window),
                $this = $(this),
                newHeight,
                newWidth,
                newPosition;

            if ($modal.data('isMaximized')) {
                newHeight = $modal.data('height');
                newWidth = $modal.data('width');
                newPosition = $modal.data('position');
                $modal.data('isMaximized', false);
            }
            else {
                $modal.data('height', $modal.dialog("option", "minHeight"))
                      .data('width', $modal.dialog("option", "minWidth"))
                      .data('position', $modal.dialog("option", "position"));

                newHeight = $window.height() - 11;
                newWidth = $window.width() - 11;
                newPosition = [0, 0];                
                $modal.data('isMaximized', true);
            }

            $this.toggleClass('ui-dialog-titlebar-max');
            $modal.dialog({ height: newHeight, width: newWidth });
            $modal.dialog({ position: 'center' });

        });

        if (showReturn.toString() == "true") {
            return false;
        }
    }
};

dnnModal.load();