double check the name of the select list. if the name use  at the end:
then it is an array
the if statement format would be:
if(in_array($row_rs_members['First Name'], $selected)
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.