var keys = v[this.valueField].split(',');
var display = v[this.displayField].split(',');
for (var i = 0 ; i < keys.length; i++) {
add = {};
add[this.valueField] = keys[i];
var keys = v[this.valueField].split(',');
var display = v[this.displayField].split(',');
for (var i = 0 ; i < keys.length; i++) {
add = {};
add[this.valueField] = keys[i];