Trapping and creating a nice error message for users

i wanted to find out how I to create a coldfusion code similar to my asp code. i'm trying to learn coldfusion.
This code traps the error and emails it to me, while showing the user a "friendly message"

on error resume next
if Err.number <> 0 then
TrapError Err.description
ON ERROR goto 0
End If
processerrors
the error page sends me the message and contains a nice error message
thanks

There's an awful ot of good info there if one was to look for it by googling "coldfusion error handling".
However the short version is:
Site-wide error handler
http://help.adobe.com/en_US/ColdFusion/9.0/Admin/WSc3ff6d0ea77859461172e0811cbf3638e6-7ffc .html#WSc3ff6d0ea77859461172e0811cbf3638e6-7ffb
onerror:
http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec22c24-7d 4a.html
cferror:
http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec22c24-7d 29.html
Handling Errors:
http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WSc3ff6d0ea77859461172e0811cbec22c24 -7fc4.html
Specifcally try/catch:
http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec22c24-7e c6.html
Adam

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