Show error message when form validation fails

[mirianCalin]

hi.. im doing a site..
i have this registration form where the user must enter some information like
name, phone_number, age, etc..
an error message should appear if

#1: there is an empty field..
error message = "Please Complete the Form"
#2: a number was inputted in the name field..
error message = "You have entered a number"
#3: a letter was inputted in the age or phone_number field..
error message = "You have entered a letter"

i am not familiar with scripting but since it is needed in the site, i have no choice.. thanks for your future replies..

[hsriat]

hi.. im doing a site..
i have this registration form where the user must enter some information like
name, phone_number, age, etc..
an error message should appear if

#1: there is an empty field..
error message = "Please Complete the Form"
#2: a number was inputted in the name field..
error message = "You have entered a number"
#3: a letter was inputted in the age or phone_number field..
error message = "You have entered a letter"

i am not familiar with scripting but since it is needed in the site, i have no choice.. thanks for your future replies..

You need this .. JavaScript form validation

[acoder]

Also check out the form validation links in the Off-site Links (sticky) thread.