Table population

Is there anyway to hide a field that is configured as a lookup table from the add page?
I am trying to populate certain fields for the ADD PAGE:ONLOAD with the script found below. Can anyone tell me what a proper syntax would be?
Sub AddOnLoad()

'** Insert a record into another table ****

strSQLInsert = "insert into supedits (wg1, wg2, wg3, wg4, wg5) values (employeees.wg1, employeees.wg2, employeees.wg3, employeees.wg4, employeees.wg5)"

dbConnection.Execute strSQLInsert
End Sub