ASP code - cover up credit card #'s

[Dani]

We currently have an online form that customers fill out to buy one of our
products. After they submit it, it sends them an email containing all the
order information including the credit card #. It currently sends the
entire # which we would like to change to xxxx-xxxx-xxxx-1234. Does anyone
know how to do this? I don't know asp well enough to know how to change
cardno to use the x's instead of the actual #. The current code is:
If cardno <> "" then

strHTML = strHTML & "<B>You have chosen to pay with the following Credit
Card:</B><br>"

strHTML = strHTML & "<B>Card Type :"&"<font style = 'color:#0000FF'>" & CC &
"</font></B><br>"

strHTML = strHTML & "<B>Card Number :"&"<font style = 'color:#0000FF'>" &
cardno & "</font></B><br>"

strHTML = strHTML & "<B>Expiration Date :"&"<font style = 'color:#0000FF'>"
& expiremonth & "," & " " & expireyear & "</font></B><br>"

Thanks for your help!

 

[Oenone]

strHTML = strHTML & "<B>Card Number :"&"<font style =
'color:#0000FF'>" & cardno & "</font></B><br>"

How about:

\\\
strHTML = strHTML & "<B>Card Number :<font style =
'color:#0000ff'>xxxx-xxxx-xxxx" & Right(cardno,4) &"</font></B><br>"
///

 

[Dani]

That did the trick. Thanks so much!

How about:

\\\
strHTML = strHTML & "<B>Card Number :<font style =
'color:#0000ff'>xxxx-xxxx-xxxx" & Right(cardno,4) &"</font></B><br>"
///

 

[Robert Smith]

strHTML = strHTML & "<B>Card Number :"&"<font style = 'color:#0000FF'>" &
cardno & "</font></B><br>"

strHTML = strHTML & "<B>Expiration Date :"&"<font style = 'color:#0000FF'>"
& expiremonth & "," & " " & expireyear & "</font></B><br>"