JSFiddle - React, Tailwind, and code Playground
by Sendy Aditya Suryana
HTML
<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<script src="http://twitter.github.com/bootstrap/assets/js/bootstrap.js"></script>
<select multiple>
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
JavaScript
$("select").on("click", "option", "selected", function () {
if ( 1 <= $(this).siblings(":selected").length ) {
$(this).removeAttr("selected");
}
});