I need to Manage the 'AccountText' variable, so if I'am passing a value with special characters for exemple "MC&CO", I should not get an error.

```
var fetchXml = "<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='true'>" + 
                "<entity name='contact'>" + 
                "<attribute name='contactid' />" + 
                "<filter type='and'><condition attribute='parentcustomerid' operator='eq' name='" + AccountText + "' value='" + AccountID + "' /></filter>" +
                "</entity>" + 
                "</fetch>";

```