JS给指定的button创建上传操作

/****
 * 给指定的button创建上传操作
 */
;cpic.upload = function(attachButtonId, isRead) {
    var code = isRead?"ECM0002":"ECM0001";
    var formId = "_" + attachButtonId + (new Date()).getTime();
    var formUpload = '
'+
                         ''+
                        ''+
                        ''+
                    '
';
    $(document.body).append(formUpload);
    $("#" + attachButtonId).click(function(){
        $("#" + formId)[0].submit();
    });
};