Send Email only after the text entry is filled.

Hi,

I need to develop a slide with the following requirement.

1) 4 clickable option (like 4 images)

2) 2 Text entries a. Name b. Comments

3) Send Email button

The user must select any one of the clickable option, and then should type out the Name and the Comment, once these actions are done, the user should click on the Send Email button, it should send out a mail.

Once the mail is moved to the outlook, the mail should consists of: the selected option, Name, and Comment.

The Email button should show out a warning message that, the details should be filled, if these three not performed.

Only after the three actions are performed, I should be able to send mail.

Please let me know how to do that. Thanks in Advance.