Javascript 操作Cookies

 

USID

PW

// index.aspx.cs

USID.Attributes.Add("onblur","SaveCurUser()");

// index.aspx

//添加 onload=SetCurUser();

     <script language="javascript">

              var LastUserId="LastUserCode";

              function SaveCurUser()

                   {

                   var objusID=document.getElementById("USID").value; 

                    CurUserId=objusID;

                       //alert("save:"+CurUserId);

                        SetCookie(LastUserId,CurUserId);

                        Form1.PW.focus();

                       return true;

                   }

            function SetCurUser()

                   {

                  

                    CurUserId=GetCookie(LastUserId);

                       //alert("get:"+CurUserId);

                       if (CurUserId==null)

                       {CurUserId=""}

                       var objusUSID=document.getElementById("USID");

                        objusUSID.value=CurUserId;

                        Form1.PW.focus();

                   }

/*--------------------------------------------------

//cookie事件 by zwb

// 2006/06/1

//--------------------------------------------------*/

//写Cookie

function SetCookie(name,value)

{

     var argv=SetCookie.arguments;

     var argc=SetCookie.arguments.length;

     var expires=new Date();

     //保存COOKIES时间为1年    

     expires.setTime(expires.getTime()+(24*60*60*1000*365));

     document.cookie=name+"="+escape(value)+("; expires="+expires.toGMTString())+"; path=/";

}

//内部函数，不供外部调用

function getCookieVal(offset)

{

     var endstr=document.cookie.indexOf(";",offset);

     if(endstr==-1)endstr=document.cookie.length;

     return unescape(document.cookie.substring(offset,endstr));

}

//读Cookie

function GetCookie(name)

{

     var arg=name+"=";

     var alen=arg.length;

     var clen=document.cookie.length;

     var i=0;

     while(i<clen)

     {

         var j=i+alen;

          if(document.cookie.substring(i,j)==arg)

              return getCookieVal(j);

          i=document.cookie.indexOf(" ",i)+1;

          if(i==0) break;

     }

     return "";

}

   </script>