How to use asynchronous methods in AJAX

so this is a Java Script code that use synchronous ajaxpro Method

 var toReturn = MyAjaxClass.MyAjaxMethod(sVariable).value;

to change it to use Asynchronous method it would look like this:

MyAjaxClass.MyAjaxMethod(sVariable,MyAjaxMethodCallback);

MyAjaxMethodCallback is a Java Script function to handle the return value from the Ajax method, it could be like this

 
function MyAjaxMethodCallback(toReturn)
{
        alert(toReturn.value);
}

That’s it….