JQuery JSON disable asynchrounous call

jQuery.ajax({

url: hostBlogUrl + getDaysInMonthWithEntryService,

type: "POST",

contentType: "application/json; charset=utf-8",

data: "{'blogID':'" + pBlogID + "', 'month':" + pMonth + ", 'year':" + pYear + "}",

dataType: "json",

success: function(response) {

var daysArray = response.d;

days = daysArray;

return daysArray;

},

error: function(req, status, er) {

alert("An error occurred whilst submitting your request.\r\n" + status + " " + er);

},

async: false

});