Function urlencode$ (strng$)
    Dim buf$, char$
    For i = 1 To Len(strng$)
        char$ = Mid$(strng$, i, 1)
        Select Case Asc(char$)
		    'Comment out next two lines if space should be %20 instead of +
			Case 32
			    buf$ = buf$ + "+"
            Case 48 TO 57, 65 TO 90, 97 TO 122, 45, 46, 95
                buf$ = buf$ + char$
            Case Else
                buf$ = buf$ + "%" + Hex$(Asc(char$))
        End Select
    Next i
    urlencode$ = buf$
End Function