Introduction
We have generated and Anti-Spam code image in the Guest book sign up page
and have done the validation for this code.
Description
In the guest book sign up page, we have displayed an Anti-Spam code image
which has an unique random alphanumeric characters. This code will change for each time.
Once the user submits his/her sign up form, we have done the validation for this
Anti-Spam code. The user can register to the guest book, only if the code is valid.
The code is case-sensitive. So the user has to enter the exact character that they view.
The background of the image will also vary with time.
