(function (window, $) {
    dnnmodal = { //global scope
        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.            
            try {
                if (parent.location.href !== undefined) {

                    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.jquery("#ipopup");
                            var refresh = popup.dialog("option", "refresh");
                            var closingurl = popup.dialog("option", "closingurl");

                            if (closingurl == "")
                            { closingurl = location.href }

                            if (popup.dialog('isopen') === true) {
                                popup.dialog("option", {
                                    close: function (event, ui) { dnnmodal.closepopup(refresh, closingurl); }
                                }).dialog('close');
                            }
                        }
                        else {
                            windowtop.jquery("#ipopup").dialog({ title: document.title });
                        }
                    }
                }
            }
            catch (err) {
                return false;
            }
        },
        show: function (url, showreturn, height, width, refresh, closingurl) {
            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);
            }

            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,
                zindex: 100000,
                refresh: refresh,
                closingurl: closingurl,
                close: function (event, ui) { dnnmodal.closepopup(refresh, closingurl); }
            })
            .width(width - 11)
            .height(height - 11);

            if ($('.ui-dialog-title').next('a.dnnmodalctrl').length === 0) {
                var $dnnmodalctrl = $('<a class="dnnmodalctrl"></a>');
                $('a.ui-dialog-titlebar-close').wrap($dnnmodalctrl);
                var $dnntogglemax = $('<a href="#" class="dnntogglemax"><span>max</span></a>');
                $('a.ui-dialog-titlebar-close').before($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() - 46;
                        newwidth = $window.width() - 40;
                        newposition = [0, 0];
                        $modal.data('ismaximized', true);
                    }

                    $modal.dialog({ height: newheight, width: newwidth });
                    $modal.dialog({ position: 'center' });
                });

            }

            //$('a.ui.dialog-titlebar-close').before('<a href="#" class="dnntogglemax"></a>');
            //            if ($('.ui-dialog-title').next("a.dnntogglemax").length === 0) {
            //                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() - 36;
            //                        newwidth = $window.width() - 36;
            //                        newposition = [0, 0];
            //                        $modal.data('ismaximized', true);
            //                    }

            //                    $this.toggleclass('ui-dialog-titlebar-max');
            //                    $this.next().toggleclass('titlebar-max');
            //                    $modal.dialog({ height: newheight, width: newwidth });
            //                    $modal.dialog({ position: 'center' });

            //                });
            //            };

            var showloading = function () {
                var loading = $("<div class=\"dnnloading\"></div>");
                loading.css({
                    width: $modal.width()
					, height: $modal.height()
                });
                $modal.before(loading);
            };

            var hideloading = function () {
                $modal.prev(".dnnloading").remove();
            };

            showloading();

            $modal[0].src = url;

            $modal.bind("load", function () {
                hideloading();
            });

            if (showreturn.tostring() == "true") {
                return false;
            }
        },

        closepopup: function (refresh, url) {
            var windowtop = parent; //needs to be assign to a varaible for opera compatibility issues.
            if (typeof refresh === "undefined") {
                refresh = true;
            }
            if ((typeof url === "undefined") || (url == "")) {
                url = windowtop.location;
            }
            if (refresh.tostring() == "true") {
                windowtop.location.href = url;
                $(this).hide();
            }
            else {
                $(this).remove();
            }
            $(windowtop.document).find('html').css('overflow', '');
        }

    };
    dnnmodal.load();
} (window, jquery))