State tax filing

Thank you again Carolyn for super prompt response. Can you tell me is their a way some form or something that I can submit to my employer and avoid him cutting taxes for either of the states? As I do see some employers only cut taxes for DE even when their employees work in PA. Is their any form I can submit so only 1 state tax is cut? As with this situation I am giving lot of my money in taxes to two states only to claim after 12 months :(.