Session Variables and Arrays?

Hey All, Just a quick question that has had me bogged down for the last hour or so. Probably something really simple i am over looking. I have a form that accepts MAC addresses, it will generate as many mac address inputs as u want using a simple while statement. the inputs are numbered ie macad1, macad2 etc... what I am trying to do is register each mac address as a session variable using: $count = 1; while ($count <= $j ){ print "<input type='hidden' name=macad$count value='$macad[$count]'>"; print "Mac Address $count: $macad[$count]<br>"; session_register("macad$count"); $count=$count+1; } Now trying to set the variable: $macad$count presents problems due to the double varibale there. and registering it as $macad[$count] returns macad[1] etc... what I want in my session is macad1 = 00-22-33-44-55-66 etc... that way on a later page all i have to do to print them out is do another while loop to print them all out... anytips? cheers - paul -