I am looking for or need help with a php that will do the following:

When an applicant checks the "I agree" check box on an email form to accept terms of a membership agreement, the script validates that the box was checked and then automatically opens in the same window a membership application form that the applicant completes and submits via a php based email form.

I have the email forms but need the validation script and on submit open the membership application script.

I need this asap.

Thanks for your help,

gerhardtj