setTimeout pour faire un événement pendant la boucle "while"

Javascript

<script>loadFlg = 0; 
function start_click() { 
 if(loadFlg == 0){ 
  loadFlg = 1; 
  change(); 
 } 
else { 
  loadFlg = 0; 
 } 
} 

function change() { 
 var items = document.getElementsByName("numberhere"); 
 for( var i = 0; i < items.length; i++ ) { 
  var li = items[i]; 
  li.innerHTML = Math.floor(Math.random() * 9); 
 } 

 if(loadFlg == 1) { 
  setTimeout("change()", 10); 
 } 
}</script>

<div name="numberhere">0</div>
<input onclick="start_click()" type="button" value="start" />