You should look at design patterns. The command pattern as it is known is
the most used pattern for undo/ redo operations.
It is used natively in java, but chould be used in a JavaScript lib.
Check out:
http://www.amazon.co.uk/exec/obidos/ASIN/0201633612/o/qid=984585622/sr=8-1/2
02-1404477-4361464
Justin
>-----Original Message-----
>From: James Maltby [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, March 14, 2001 1:37 PM
>To: CF-Talk
>Subject: Using javascript to create an Undo - the return
>
>
>Hi - posted this recently but still no resolution:
>
>Have a cf forum we have written, with javascript "Word" like buttons that
>output html for <b>, <i> and <u> in the input textarea - would like to
>include an "undo" function with acts like ctrl+Z from the keyboard
>- in that
>it will remove either the last piece of text written, or the inputted
><b></b> (etc) tags - any suggestions?
>
>James
>
>
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