I did a variation on this and it works well.My question is.What do I need to put in to make the 2nd value clear out if they change the first value?As it is now they can still make a mistake by extra fiddling with the field.var myObj={"PRD-ER":"1 μR/hr-PRD-ER,2 μR/hr-PRD-ER,3 μR/hr-PRD-ER,4 μR/hr-PRD...