Calling ASP.NET Code Behind function from JavaScript

Question

Is it possible to call ASP.NET codebehind function from JavaScript.

Answer 1

cs function

[System.Web.Services.WebMethod]
public static string set_single_amount(arg a1)
{
     return value;
}

in script cs fucnction calling using scriptmanager

$("#control").click(function()
{
  PageMethods.set_single_amount(value,afercalling)
});

function afercalling(result)
{
alert(result);
}