Webmaster Forum / ColdFusion / Getting Started / October 2004

I'm a noob with CF, but proficient with classic ASP and PHP, so bear with me.

I wanting to set/retrieve a cookie, but to give the user control over whether
to set or clear this cookie:

Username [_______]
[]Click here to remember your username [Submit]

Okay, the user enters their username, the checks the box,  and the next time
he comes to the form:

Username [JoeB___]
[]Click hear to clear your username cookie [Submit]

I've been able to get the checkbox to appear back/forth and remember the
username, but not the combination.

Here's my direct questions:
How do I populate the value of a field with its cookie value, but not generate
an error if there is no cookie set?
Should I use CFIF IsSet("Cookie.Username") / CFELSE to determine which form
checkbox to displays?

The server I'm working on has CF 5 btw.
Also, besides this newsgroup, what code snippet/tutorial sites or books would
you recommend? So far I'm liking CF, it's just getting the hang of the
variables and syntax...
Thanks,

Todd