How to set default date to first of last month and end of last month? 1

[cfvcf]

I have two date fields and want to set one to the first day of last month and the second one to the last day of last month. What would be the code to do that?
Thanks!

 

[PWise]

dateadd("m",-1,date()+1-datepart("d",date()))

for first day of last month

dateadd("d",-1,date()+1-datepart("d",date()))

for last day of last month

 

[cfvcf]

Wonderful! Thank you!