[Freeswitch-users] lua script

Hi, Does anyone know how can we use a variable declared inside if statement outside if block? if sip_request_user == nil then sip_request_user = params:getHeader("sip_request_user") else local sip_request_user1 = tonumber(sip_request_user) end In my lua I have something like above and I want to use the variable sip_request_user1 outside if. What can be done? Regards, Archana