Mask digits in output?

[castellu]

I want to mask the digits of a number output in my pages. I have an 8 digit number and want to only display the last 4 digits to be read. I want the output to look like XXXX1234. I have seen this done with credit card numbers on many sites so your number is not readable, but can't seem to figure out how to do it using Cold Fusion? Any help would be great. -------------------------------------
castellu

 

[Sarky78]

<CFSET x = &quot;12345678&quot;>

<CFOUTPUT>
XXXX#Right(x,4)#
</CFOUTPUT>

that would do it

 

[castellu]

That is it...Thanks for the quick help. -------------------------------------
castellu