ElseIf
	v ElseIf solves the problem of testing a long sequence of alternatives
				If   <T/F condition>   Then      <statement list>     Stmts for 1st cond ElseIf   <T/F condition>   Then      <statement list>      Stmts for 2nd cond ElseIf   <T/F condition>   Then      <statement list>      Stmts for 3rd cond ElseIf   <T/F condition>   Then      <statement list>      Stmts for 4th cond    ... Else      <statement list>      Stmts for otherwise EndIf