Radio button selecting multiple buttons sometimes

Deba1995 — Fri, 22 Nov 2019 23:14:46 +0000

My problem is if I select more than one radio button sometimes both value gets stored. Why?

Nov 22 '19 Comments: 3 Answers: 0

<script type="text/javascript">   
   function ajax_value_save(id){
    if (document.getElementById('a').checked) {
     var  rate_value = document.getElementById('a').value;
    }
  else if (document.getElementById('b').checked) {
     var  rate_value = document.getElementById('b').value;
    }
    else if (document.getElementById('c').checked) {
     var  rate_value = document.getElementById('c').value;
    } 
  else if (document.getElementById('d').checked) {
   var  rate_value = document.getElementById('d').value;
  }   
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange

…

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Radio button selecting multiple buttons sometimes

My problem is if I select more than one radio button sometimes both value gets stored. Why?