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Javascript for validating email

Using client side Java Script is an efficient way to validate the user input in web forms.When there are many fields in the form, the Java Script validation becomes too complex.The Java Script class presented here makes the form validations many times easier.

For ‘selections’ like drop down and radio group, use an appropriate validation like ‘dontselect’ or ‘selone_radio’.This validation descriptor is valid only for drop down lists.The drop down select list boxes usually will have one item saying ‘Select One’ (and that item will be selected by default).The user should select an option other than this ‘Select One’ item.Shows you how to write a script that ensures your form is filled in correctly before it's sent to your server.Great for "required fields" such as email addresses!This tutorial will show you how to create a Java Script-enabled form that checks whether a user has filled in the form correctly before it's sent to the server. First we'll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we go along.At the end, there's a little exercise to keep you busy too!Form validation is the process of checking that a form has been filled in correctly before it is processed.For example, if your form has a box for the user to type their email address, you might want your form handler to check that they've filled in their address before you deal with the rest of the form.There are two main methods for validating forms: (usually done using Java Script).

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