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get the Value of a Select box

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Thu. Oct. 5th, 2006 12:01 PM

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Idlemind

ajax | JavaScript

4 comments

I use this in my AJAX as a quick way to get the Value of the selected item in a Select HTML object. If nothing is selected, it returns zero.
(May be basic to y'all, but maybe really usefull to someone else).

function fn_SelectedValue(selectId)

{

  theSelect = document.getElementById(selectId);

  selectedValue = theSelect.option[theSelect.selectedIndex].value;

  if(!selectedValue || selectedValue==null)

  {

    selectedValue = 0;

  }

  return selectedValue;

}