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How can I validate a form that has brackets in the variable names?

Last updated: 06/21/2009

Sometimes when setting up forms, especially when using php , variable names use bracket notation, like: contact[name].

This causes problems when trying to validate the form using javascript. A simple way to get around this is to use the bracket notation when checking form variables in javascript:

<SCRIPT language=javascript>
function validate() {  
  name=mainform['contact[name]'].value;
  if (name=="") {
    alert('Your Name is a required field.');
    return false;
  }
}
</SCRIPT>

X Of course, in your form, you should include the standard onsubmit="return validate();" parameter.

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How can I validate a form that has brackets in the variable names?