Validation in Web to Lead Forms.

Validation in Web to Lead Forms.

Hello,

I would like to give validation in the web forms.

I don't find any option in zoho for this.

Please guide me how to put the validation.

I like to put validations like:
  • Please enter First Name (if the field is left blank).
  • First Name can contain only alphabets only (if the entered data is non-aphabets).
  • Last Name can contain only alphabets only (if the entered data is non-aphabets).
  • Please specify your Designation (if the field is left blank).
  • Please specify your City (if the field is left blank).
  • Please specify your Phone Number (if the field is left blank).
  • Phone can only contain numeric data (if entered data are not numbers).
  • Please enter your E-mail (if the field is left blank).
  • Pleasse enter a valid e-mail address (if e-mail address entered is not in e-mail format.
  • Please enter your Company name (if the field is left blank).
Please provide a solution as soon as possible.

Regards.