AngularJS Example:

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div ng-app>
  <div ng-controller="MainCtrl">
      <div ng-repeat='item in items'>
          <span id="{{'vidPlayerDiv' + $index}}">{{'vidPlayerDiv' + $index}}</span>   
      </div>
  </div>
</div>

JavaScript

function MainCtrl($scope) {
    $scope.items = [1, 2];
}