input - Detect text filled by barcode scanner(reader) javascript -

the code checks barcodes using barcode scanner. search_code filled user (keyboard) , , insert_code filled automatically barcode scanner. currently, code works if both inputs introduced in barcode scanner values ​​which not functional me.

the code needs run when:

1. search_code entered manually ( keyboard ) and
2. insert_code filled automatically barcode scanner

var search_code = document.getelementbyid('search_code');  var insert_code = document.getelementbyid('insert_code');  var result = document.getelementbyid('result');  var button = document.getelementbyid('button');  var audio = new audio('sound.wav');      // respond button click  button.onclick = function validate(e) {    e.preventdefault();       // show verification result:    if (search_code.value == insert_code.value) {      result.textcontent = 'code ok';      result.classname = "ok";      audio.play();    } else {      result.textcontent = 'code not ok';      result.classname = "not-ok";    }    // clear input when wrong:    if (search_code.value !== insert_code.value) {      insert_code.value = '';    }    return false;  };    function clearfield(input) {    input.value = "";  };

....       <form>          <input type="text" name="search_code" onfocus="clearfield(this, this.placeholder='');" onblur="this.placeholder='introdu codul'" id="search_code" placeholder="introdu codul" autocomplete="off" value=""/><br/>          <input type="" name="insert_code" onfocus="clearfield(this, this.placeholder='');" onblur="this.placeholder='scaneaza codul'" id="insert_code" placeholder="scaneaza codul" autocomplete="off" value=""/><br/><br/>          <input type="submit" id="button" name="button" value="verifica cod" />      </form>        </div>    <div id="result"></div>     </div>     <script src="js/action_input.js"></script>   </body>  </html>

thank you!

to prevent textbox being filled bar-code reader disable onpaste event .

$(document).ready(function(){       $('#search_code').bind("cut copy paste",function(e) {           e.preventdefault();       });     });