[SOLVED] Update date month year selects from next day of the week select

[Helmet]

That was probably a confusing title, sorry. I have drop downs for entering date information into a form

 

select 1: monday/tuesday/wednesday...

select 2: month

select 3: date

select 4: year

 

These all default on load to today's values, but I'd like selects 2-4 to update with the values corresponding to the next select 1 if the user changes it. I know how to change the values, but I'm drawing a blank on how to calculate what to change them to. Any suggestions?

[gnawz]

very clear.

 

What are you working on?

 

You could automatically change month depending on no of days eg feb 28/29....30/31

[Helmet]

I resolved this using Mootools new Date.Extras extension:

 

http://www.clientcide.com/wiki/cnet-libraries/03-native/01-date.extras