Well, you just need a select, and then build all your test results into one (different ones) redirect, as in:
- screen < 1024 & no flash = redirect 1,
- screen < 1024 & flash = red. 2 (maybe more if you want a specific version of the plug-in…)
- screen > 1024 & no flash
- screen > 1024 & flash
etc…depends how exact you’ll want to be in your detection…