If txtYear.Text = "" Then
        MsgBox "Please Enter Year", vbOKOnly, "Data Entry Error"
        txtYear.SetFocus
    ElseIf IsNumeric(txtYear.Text) = False Then
        MsgBox "Please Enter a Valid Numeric Year", _
        vbOKOnly, "Data Entry Error"
        txtYear.Text = ""
        txtYear.SetFocus
    Else
        intYear = Val(txtYear.Text)
            
        If intYear Mod 400 = 0 Then
            lblLeapYear.Caption = "Yes"
        ElseIf intYear Mod 4 = 0 Then
            If intYear Mod 100 = 1 Then
                lblLeapYear.Caption = "Yes"
            End If
        Else: lblLeapYear.Caption = "No"
        End If
        
    End If