ASP.NET Web Forms : Calling Web Service Page Methods Using JQuery

Amazing, this article shows how to call PageMethod without using 'ScriptManager'

http://tugberkugurlu.com/archive/asp-net-web-forms---calling-web-service-page-methods-using-jquery

Thanks Ugurlu

//-----------------------------------------------------------------------------+
// jQuery call AJAX Page Method                                                |
//-----------------------------------------------------------------------------+
function PageMethod(fn, paramArray, successFn, errorFn) {
var pagePath = window.location.pathname;
//-------------------------------------------------------------------------+
// Create list of parameters in the form:                                  |
// {"paramName1":"paramValue1","paramName2":"paramValue2"}                 |
//-------------------------------------------------------------------------+
var paramList = '';
if (paramArray.length > 0) {
for (var i = 0; i < paramArray.length; i += 2) {
            if (paramList.length > 0) paramList += ',';
paramList += '"' + paramArray[i] + '":"' + paramArray[i + 1] + '"';
}
}
paramList = '{' + paramList + '}';
//Call the page method
$.ajax({
type: "POST",
url: pagePath + "/" + fn,
contentType: "application/json; charset=utf-8",
data: paramList,
dataType: "json",
success: successFn,
error: errorFn
});
}