how can i extract from such an array??

hi all, just a quick question. i've made a personal addressbook, the code for which i'm going to release soon (best probably for newbies). anyway, i want to make it so that i can pass multiple email address from one page to another. basically it'll be a form select function like : <select name="$emailto[]";> <option name="email1">name1 <option name="email2">name2 <option name="email3">name3 <option name="email4">name4 </select> now say i select name 1 and 4. i want to extract the emails on the page the variables are passed to, seperated by a comma. any piece of code?? thanks! /sunny __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/