Validating input in javascript

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The idea is to create a set of “validation descriptors” associated with each element in a form.The “validation descriptor” is nothing but a string specifying the type of validation to be performed.With more than a decade's professional experience, he is a published author, a frequent blogger and speaker, and an outspoken advocate of standards-based development.Cold Fusion lets you write your own validation routines in Java Script, and lets you create Java Script error handlers.This validation descriptor is valid only for drop down lists.

For ‘selections’ like drop down and radio group, use an appropriate validation like ‘dontselect’ or ‘selone_radio’.

Each field in the form can have zero one or more validations. More info & downloads where Do My Validation One() and Do My Validation Two() are custom functions for validation.

For example, you can have an input field that should not be empty, should be less than 25 chars and should be alpha-numeric. In some dynamically programmed pages, it may be required to change the validations in the form at run time.

Once we’ve got those utilities we can define the main validation function, which tests the field and then performs the actual validation, if applicable: attribute to indicate that state – adding it to an invalid field that doesn’t already have it, or removing it from a valid field that does. Finally, to put this all into action, we need to bind the validation function to an .

We could just choose to ignore those browsers, but I think that would be a shame, especially when the problem is so simple to workaround.

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