In the function _createTable don't add the attribute ID to the table.
I add this line: .attr('id', this.options.tableId)
and the function result:
_createTable: function () {
this._$table = $('<table></table>')
.addClass('jtable')
.attr('id', this.options.tableId)
.appendTo(this._$mainContainer);
this._createTableHead();
this._createTableBody();
},