[Sweet]

Во:

<div style="position: relative; width:200px; height:20px;">
  <div style="position: relative; height:20px; background-color:#0033CC;" id="reit">
    <div style="position: relative; height:20px; width:200px;">Число просмотров.</div>
  </div>
</div>
<script>           
var show = 200;
if (show < 1000 ) {
document.getElementById('reit').style.width = ( show / 1000 ) * 200 + 'px'; 
} else {
document.getElementById('reit').style.width = ( show / 10000) * 200 + 'px';
}                
</script>