using System;
using System.IO;
using System.Web;
using System.Web.Services;
using System.Reflection;

namespace test1
{
   [WebService(Namespace = "http://tempuri.org/")]
   [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
   public class cache : IHttpHandler
   {

       private static void cacheIt(TimeSpan duration)
       {
           HttpCachePolicy cache = HttpContext.Current.Response.Cache;

           FieldInfo maxAgeField = cache.GetType().GetField("_maxAge", BindingFlags.Instance | BindingFlags.NonPublic);
           maxAgeField.SetValue(cache, duration);

           cache.SetCacheability(HttpCacheability.Public);
           cache.SetExpires(DateTime.Now.Add(duration));
           cache.SetMaxAge(duration);
           cache.AppendCacheExtension("must-revalidate, proxy-revalidate");
       }

       public void ProcessRequest(HttpContext context)
       {
           string file = context.Request.QueryString["file"];
           if (string.IsNullOrEmpty(file))
           {
               return;
           }

           string contetType = context.Request.QueryString["contetType"];
           if (string.IsNullOrEmpty(contetType))
           {
               return;
           }
          
           context.Response.Write(File.ReadAllText(context.Server.MapPath(file)));

           //Set the content type
           context.Response.ContentType = contetType;

           // Cache the resource for 30 Days
           cacheIt(TimeSpan.FromDays(30));
       }

       public bool IsReusable
       {
           get
           {
               return false;
           }
       }
   }
}

<link type="text/css" href="cache.ashx?v=1&file=site.css&contetType=text/css" rel="Stylesheet" />

<script type="text/javascript" src="cache.ashx?v=1&file=js/jquery-1.3.2.min.js&contetType=application/x-javascript"></script>

<system.web.extensions>
  <scripting>
    <webServices>
      <authenticationService enabled="true" />
    </webServices>
  </scripting>
</system.web.extensions>

$.ajax({
                    type: "POST",
                    url: "/websrv.asmx/MyMethod",
                    data: "{}",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    async: true,
                    cache: true,
                    success: function (data) {                   
                        $("#plandata").html(data.d);
                    },
                    error: function (x, e) {
                        alert("The call to the server side failed. " + x.responseText);
                    }
                });

$("<div>Hello</div>")

$("<div>")
//  همه اینها معادل هستند 

$("<div></div>") 

$("<div/>")

$("<div class='foo'>I have foo!</div><div>I don't</div>")
     .filter(".foo").click(function() {
          alert("I'm foo!");
      }).end().appendTo("#someParentDiv");

$( "<div/>", {
    "class": "test",
     text: "Click me!",
     click: function() {
           $( this ).toggleClass( "test" );
     }
   }).appendTo( "body" );