function sfAssetsLibrary_Engine() {
    var ua = navigator.userAgent;
    this.isMSIE = (navigator.appName == "Microsoft Internet Explorer");
    this.isMSIE5 = this.isMSIE && (ua.indexOf('MSIE 5') != -1);
    this.isMSIE5_0 = this.isMSIE && (ua.indexOf('MSIE 5.0') != -1);
    this.isGecko = ua.indexOf('Gecko') != -1;
    this.isSafari = ua.indexOf('Safari') != -1;
    this.isOpera = ua.indexOf('Opera') != -1;
    this.isMac = ua.indexOf('Mac') != -1;
    this.isNS7 = ua.indexOf('Netscape/7') != -1;
    this.isNS71 = ua.indexOf('Netscape/7.1') != -1;
    this.isTinyMCE = false;
    if (this.isOpera) {
        this.isMSIE = true;
        this.isGecko = false;
        this.isSafari = false;
    }
}
sfAssetsLibrary_Engine.prototype = {
    init: function(url) {
        this.url = url;
    },
    fileBrowserReturn: function(url, PopUp) {
        if (PopUp) {
            var win = PopUp.getWindowArg("window");
            var input = PopUp.getWindowArg("input");
            win.document.getElementById(input).value = url;
            if (this.fileBrowserType == 'image') {
                if (win.ImageDialog.showPreviewImage) {
                    win.ImageDialog.showPreviewImage(url);
                }
            }
            PopUp.close();
        } else {
			//console.log(this.selectorWin);
			//this.fileBrowserWin.document.getElementById('src').value=url;
//            this.fileBrowserWin.document.forms[this.fileBrowserFormName].elements[this.fileBrowserFieldName].value = url;
        }
    },
    fileBrowserCallBack: function(field_name, url, type, win) {
		//console.log(win);
        this.isTinyMCE = true;
        var url = this.url;
        this.fileBrowserType = type;
		this.selectorWindow = win;
        if (type == 'image') url += '/images_only/1';
		this.openWindow({'field_name':'src', 'imagewindow' : win});
        /*tinyMCE.activeEditor.windowManager.open({
            file: url,
            title: "Please select a image",
            width: 640,
            height: 480,
            resizable: "yes",
            inline: "yes",
            scrollbars: "yes",
            close_previous: "yes"
        },
        {
            'window': win,
            input: field_name,
            mediaLibrary: this
        });*/
    },
    openWindow: function(options) {
        var width, height, x, y, resizable, scrollbars, url;
        if (!options) return;
        if (!options['field_name']) return;
        if (!options['url'] && !this.url) return;
		//console.log(options['imagewindow']);
        this.fileBrowserWin = self;
        this.fileBrowserFormName = (options['form_name'] == '') ? 0 : options['form_name'];
        this.fileBrowserFieldName = options['field_name'];
        this.fileBrowserType = options['type'];
        url = this.url;
        if (options['type'] == 'image') url += '/images_only/1';
        if (! (width = parseInt(options['width']))) width = 550;
        if (! (width = parseInt(options['width']))) width = 550;
        if (! (height = parseInt(options['height']))) height = 600;
        if (sfAssetsLibrary.isMSIE) height += 40;
        else height += 20;
        x = parseInt(screen.width / 2.0) - (width / 2.0);
        y = parseInt(screen.height / 2.0) - (height / 2.0);
        resizable = (options && options['resizable']) ? options['resizable'] : "no";
        scrollbars = (options && options['scrollbars']) ? options['scrollbars'] : "no";
        var modal = (resizable == "yes") ? "no": "yes";
        if (sfAssetsLibrary.isGecko && sfAssetsLibrary.isMac) modal = "no";
        if (options['close_previous'] != "no") try {
            sfAssetsLibrary.lastWindow.close();
        } catch(ex) {}
        var win = window.open(url, "sfPopup" + new Date().getTime(), "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",dialog=" + modal + ",minimizable=" + resizable + ",modal=" + modal + ",width=" + width + ",height=" + height + ",resizable=" + resizable);
        if (options['close_previous'] != "no") sfAssetsLibrary.lastWindow = win;
        eval('try { win.resizeTo(width, height); } catch(e) { }');
        if (sfAssetsLibrary.isGecko) {
            if (win.document.defaultView.statusbar.visible) win.resizeBy(0, sfAssetsLibrary.isMac ? 10 : 24);
        }
        win.focus();
		win.opener.imagewindow=options['imagewindow'];
    }
}
var SfAssetsLibrary = sfAssetsLibrary_Engine; //
var sfAssetsLibrary = new sfAssetsLibrary_Engine();