CKFinder - Disable file upload (using javascript)

I'm currently using ckfinder as a file manager with javascript but i would like to disable the file uploading from a certain page.

I'm currently using javascript with the following code:

    function BrowseServer2() {
        var finder2 = new CKFinder();
        finder2.basePath = '/ckfinder/userfiles/files';
        finder2.selectActionFunction = SetFileField2;
        finder2.popup();
    }
    function SetFileField2(fileUrl) {
        document.getElementById("<%= attach_path.ClientID %>").value = fileUrl;
    }

How can i here specify that i wan't to disable file upload?