+1  A: 

What is the URL of the iFrame being set to? You can confirm this (in Firefox) by right clicking in the iFrame and selecting "Open Frame in New Window"

If the URL is schedule.php?therapist=, then the error is with the code you've posted here. If the URL contains a value for therapist, for example, schedule.php?therapist=bob, then the error is in schedule.php.

Josh
hmm the url of the frame is schedule.php no matter what the selected item is
Pete Herbert Penito
so that means there's a problem with my js
Pete Herbert Penito
ive heard that using window.frames['schedule'].src is a better way to go than document.getelementbyid because more browsers support this
Pete Herbert Penito
do i need to perhaps not set the src of the iframe in the initial load?
Pete Herbert Penito
it works with `document.getElementById("schedule").src = "schedule.php?therapist="+newn;` instead of `window.frames['schedule'].src = "schedule.php?therapist="+newn` so i guess ill just use that thank you sir!
Pete Herbert Penito
Looks like you figured it out on your own. Glad I could help... although I didn't do much. Nice work!
Josh