JavaScript read radio button value in IE and FireFox

Question

I have a simple web form that uses JavaScript for building a POST statement. In Chrome, I can use a simple line of code...

var form = document.forms[\'myForm\'];         


        

Answer 1

Try this

function getValueFromRadioButton(name) {
   //Get all elements with the name
   var buttons = document.getElementsByName(name);
   for(var i = 0; i < buttons.length; i++) {
      //Check if button is checked
      var button = buttons[i];
      if(button.checked) {
         //Return value
         return button.value;
      }
   }
   //No radio button is selected. 
   return null;
}

IDs are unique so you should not use the same ID for multiple items. You can remove the all the radio button IDs if you use this function.