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Form validation of the pattern if (document.formname.formfield.value == "") - that is blank - is barely worthy of the name, and virtually useless, as even a single space, an X or a ? will return false, that is pass the validation. A proper name may only contain letters, hyphen, space and apostrophe.
Numeric values, such as zip codes and phone numbers, should be validated as such. Ditto email addresses. This topic has been covered many times before in this forum.
Instead of repeating ad nauseam document.forms just create a new variable
var f = document.forms;
Why does it not work? Hint - look for missing closing braces.
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Unless stated otherwise it is not just a demonstration.
Last edited by Philip M; 11-15-2012 at 02:02 PM..