Is form Element defined ?

[Guest_imported]

How do I know if a particular form element exist in the form or not ? I am writing script on several form elements assuming that they exist. But the display of form elements is conditional. So even before a script function is applied, how do I know whether a form element exist or not. Is there anything like document.form.element.exist (or defined) ??

 

[jlsmithhartfiel]

Try...

if (document.form.element) {
  // process element here
}

Hope this helps,
Jessica