Democratic and Republican lawmakers agree that online voter registration is a good idea — if it is done right. At least, that consensus emerged Tuesday during a House Elections Committee hearing on a bill that would authorize online registration and absentee ballot applications. Registering online is “user friendly, cheaper and more reliable” than filling out paper applications, said Rep. Steve Simon, DFL-Hopkins, the committee chairman and bill sponsor. Minnesota voters already can register electronically. Secretary of State Mark Ritchie started accepting online registrations in September. So far, about 2,500 voters have registered on the new website.