Script priority

If a form has both a visual script and a client script on exit/submit, which takes precedance?  

I have a form with both and it just sitting and spins and never completes but never errs out.   The visual script inserts the data into a table but the client script is supposed to filter any single quotes from the memo fields on the form. 

Since I can't get the form to complete, i can't tell if the filter is working. 

Thanks