function openUploadModalDialog(){
    $('.upload').click(function(e) {
 
        e.preventDefault();
 
        var $this = $(this);
        var show_title   = getQueryVariable('show_title', this.href);
        var show_comment = getQueryVariable('show_comment', this.href);
        var pos          = getQueryVariable('pos', this.href);
        var fieldname    = getQueryVariable('fieldname', this.href);
        var buttonsOpts = {};
        buttonsOpts[uploadLang.returnTxt] = function() {
            $(this).dialog("close");
        };
 
        $('#file-upload-modal-' + fieldname).appendTo('body').modal();
        $(document).on('shown.bs.modal','#file-upload-modal-' + fieldname, function()
        {
            updateMaxHeightModalbody($(this));
        });
        $('#file-upload-modal-' + fieldname).on('hide.bs.modal', function() {
            var pass;
            var uploaderId = 'uploader' + fieldname;
            if(document.getElementById(uploaderId).contentDocument) {
                if(document.getElementById(uploaderId).contentDocument.defaultView)
                    {       /*Firefox*/
                    pass=document.getElementById(uploaderId).contentDocument.defaultView.saveAndExit(fieldname,show_title,show_comment,pos);
                }else{       /*IE8*/
                    pass=document.getElementById(uploaderId).contentWindow.saveAndExit(fieldname,show_title,show_comment,pos);
                }
            }else{    /*IE6*/
                pass=document.getElementById(uploaderId).contentWindow.saveAndExit(fieldname,show_title,show_comment,pos);
            }
            return pass;
        });
    });
}