Script for validating a form in javascript

Lisa Wollin Microsoft Corporation May 2004 Applies to: Microsoft® Office Front Page® 2003 Microsoft Front Page 2002 Microsoft Front Page 2000 Summary: Learn how validate HTML form fields using Java Script in Microsoft Office Front Page 2003.This article assumes a general understanding of HTML and Java Script.Microsoft® Office Front Page® 2003 allows you to create some custom validation within the form feature.(For more information on how to create form validation using the Front Page form feature, see About creating forms in Front Page 2003.) However, if the form validation provided in Front Page does not suit your needs or the site on which you are working is hosted on a server that does not have Front Page Server Extensions from Microsoft installed, you may need to create custom form validation.(16 printed pages) Introduction Getting Started Writing the Validation Script Connecting the Form to the Script Associating Form Fields with Custom Script Code Listing Conclusion When you create forms, providing form validation is useful to ensure that your customers enter valid and complete data.

Here I am giving you the form validation codes in Java Script. These are simple meta characters which do pattern matching. If the entered characters in the field is not in lower case or upper case. When it’s about checking contact field or zip code field, one need to check whether only the number have been entered or not.

You can then adapt this form to your own requirements.

Let's build a simple form with a validation script.

[a-z] : It matches characters from lowercase ‘a’ to lowercase ‘z’. If by mistake, user skips entering any detail, soon the alert message appear on the form.

escaping - by -) [0-9] : It matches digital number from 0-9. That means, you could be very sure about the form, whether users have entered the details or not.

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