Your own js tool Cookie encapsulation _ javascript skills

In some cases, our web programs need to use cookies to implement some functions. In many cases, we do not need to use the server to operate cookies, because js can also operate cookies. in this case, we 'd better encapsulate cookie operations for reuse.
==================================

The Code is as follows:

/**
Cookie-like
Put this class into the js file for use.
1. add (name, value, 100); add a cookie
2. get (name );
3. remove (name );
Use Case:
Cookie. add ("sk", "ss", 3 );
Alert (cookie. get ("sk "));
Cookie. remove ("sk ");
*/
Var Cookie = new function (){
// Add cookie
This. add = function (name, value, hours ){
Var life = new Date (). getTime ();
Life + = hours * 1000*60;
Var cookieStr = name + "=" + escape (value) + "; expires =" + new Date (life). toGMTString ();
Document. cookie = cookieStr;
};
// Obtain the cookie value
This. get = function (name ){
Var cookies = document. cookie. split (";");
If (cookies. length> 0 ){
Var cookie = cookies [0]. split ("= ");
If (cookie [0] = name)
Return unescape (cookie [1]);
}
Return null;
};
// Delete the cookie
This. remove = function (name ){
Var cookieStr = name + "=" + escape ('null') + "; expires =" + new Date (). toGMTString ();
Document. cookie = cookieStr;
};
}