tab event code example

Example 1: jquery capture tab

$("#parentOfTextbox").on('keydown', '#textbox', function(e) { 
  var keyCode = e.keyCode || e.which; 

  if (keyCode == 9) { 
    e.preventDefault(); 
    // call custom function here
  } 
});

Example 2: javascript press tab key

window.onkeypress = function(e) {
    if (e.which == 13) {
        e.preventDefault();
        var inputs = document.getElementsByClassName('input');
        for (var i = 0; i < inputs.length; i++) {
        if (document.activeElement.id == inputs[i].id && i+1 < inputs.length ) {
            inputs[i+1].focus();
            break;   
        }
    }