var checkbox_id = this.flat_id(this.id('checkbox', key_value));
checkbox_id = '#' + checkbox_id;
var element = $(checkbox_id, this.table.fnGetNodes());
var checkbox_id = this.flat_id(this.id('checkbox', key_value));
checkbox_id = '#' + checkbox_id;
var element = $(checkbox_id, this.table.fnGetNodes());