Find/Fetch Notes of an Entity in Dynamic CRM 2011/2013

So many times we might have require to find or to fetch attached Notes of  a particular Entity. We can done this either using Plugin code or Javscript code.
Here I am going to share JavaScript code to perform the same :
Take a look -

function CheckNote()
{
try
{
var entityId = Xrm.Page.data.entity.getId();
alert(entityId);
var serverURL = Xrm.Page.context.getClientUrl()+"/XRMServices/2011/OrganizationData.svc";
alert(serverURL);
if(entityId)
{
var oDataQuery = serverURL+"/AnnotationSet?$filter=ObjectId/Id eq guid'"+entityId+"'";
alert(oDataQuery);
Xrm.Page.getAttribute("spousesname").setValue(oDataQuery);
$.ajax({
type: "GET",
contentType: "application/json; charset=utf-8",
datatype: "json",
url: oDataQuery,
beforeSend: function (request) { request.setRequestHeader("Accept", "application/json"); },
success: function (data, textStatus, request)
{
if(data.d.results.length > 0)
{
alert("Present");
}
else
{
alert("Not Present");
}
},
error: function (request, status, exception) { }
});
}
}
catch(e)
{
alert(e.message);
}
}

Hope this will help someone to find or retrieve Notes of an entity.