Div draggable x axe only
IN html :
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
in js:
$(function () {
$("div[id='nameOfDIV']").draggable({
axis: "x"
});