Action:
If ((A_GuiEvent = "DoubleClick") || (Trigger_Action))
{
    Gui, Submit
    If (Choise = "20")
        T:=15
    If (Choise = "100")
        T:=100
    If (Choise = "200")
       T:=200
    If (Choise = "300")
       T:=300
}