JavaScript對Cookie的操作-設置Cookie、獲得Cookie、刪除Cookie

設置cookie

function setcookie(name,value)
   {

     var Days = 30;

     var exp  = new Date();

     exp.setTime(exp.getTime() + Days2460601000);

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

     //alert(document.cookie); 
   }
獲取cookie
   function getcookie(name)
   {

       var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));

       if(arr != null)
       {

           return unescape(arr[2]);

       }
       else
       {

           return "";

       }

   }
刪除cookie
   function delcookie(name)
   {

       var exp = new Date();

       exp.setTime(exp.getTime() - 10000);

       document.cookie = name + "=a; expires=" + exp.toGMTString();
}</pre>