Google Map APi - Filtering XML results?

[alexx]

Does anyone know if you can filter results to show on a google map... I've got a xml file populating the markers - and I want a drop down list or radio buttons to select only 1 category ie...


cat="blue"
cat="red"

I want to only show the red or the blue cat from the list?

 

[alexx]

It is Dave yep, I have specific markers being called already so blue markers show artists say and red shows events. However I'd like to be able to hide ALL artists or All events to just show the one category to make browsing easier than just colour co ordination.

Does that make sense?