function button_checker(button, message)
{
   // set var button_choice to false
   var button_choice = false;
   
   // Loop from zero to the one minus the number of button button selections
   for (counter = 0; counter < button.length; counter++)
   {
      // If a button button has been selected it will return true
      // (If not it will return false)
      if (button[counter].checked)
         button_choice = true; 
   }
      
   // If there were no selections made display an alert box
   if (!button_choice)
   {
      alert(message)
      return (false);
   }
   return (true);
}