document has changed dialog

the document has changed. Do you want to save has two options
yes and cancel   but there should be a third saying no
Yes --- will save changes
No --- will not save changes
Cancel will get rid of box to carry on with changes

right now one gets caught in loop where they must make changes.   //
John Russell, VE3LL@RAC.CA
http://home.cogeco.ca/~ve3ll (2 L's as in LLAMA)
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