The formAction tag uses the following attributes:
formId. Specifies the name of the form. If not specified, the default form searchForm will be used.
ElemColl. (Optional) The name of the Collection element. The default name c is used.
elemQuery. (Optional) The name of the Start element. The default name qt is used.
elemStart. (Optional) The name of the Start element. The default name si is used.
elemNumShown. (Optional) The name of the numShown element. The default name ns is used.