Trigger buttons based on values socket.io

How can i change this to get worked by using value not ID

var socket = io("http://localhost:3000");
        socket.on('connect', function() {
          document.getElementById("sq1").addEventListener("click", function (data) {
        socket.emit("clicked");

          });
socket.on('clicked', function(data) {
     console.log('clicked');
          document.getElementById("alert").innerHTML = "1 clicked";

          onClickHandler(sq1);

        });

via vamshi