• 用JS修改Cookies

    post by Holmesian / 2008-9-12 11:09 Friday
    如题

    var Cookies = {};
    /**//**
    * 设置Cookies
    */

    Cookies.set
    = function(name, value){
         
    var argv = arguments;
         
    var argc = arguments.length;
         
    var expires = (argc > 2) ? argv[2] : null;
         
    var path = (argc > 3) ? argv[3] : '/';
         
    var domain = (argc > 4) ? argv[4] : null;
         
    var secure = (argc > 5) ? argv[5] : false;
          document.cookie
    = name + "=" + escape (value) +
            ((expires
    == null) ? "" : ("; expires=" + expires.toGMTString())) +
            ((path
    == null) ? "" : ("; path=" + path)) +
            ((domain
    == null) ? "" : ("; domain=" + domain)) +
            ((secure
    == true) ? "; secure" : "");
    }
    ;
    /**//**
    * 读取Cookies
    */

    Cookies.get
    = function(name){
        
    var arg = name + "=";
        
    var alen = arg.length;
        
    var clen = document.cookie.length;
        
    var i = 0;
        
    var j = 0;
        
    while(i < clen){
             j
    = i + alen;
            
    if (document.cookie.substring(i, j) == arg)
                
    return Cookies.getCookieVal(j);
             i
    = document.cookie.indexOf(" ", i) + 1;
            
    if(i == 0)
                
    break;
         }

        
    return null;
    }
    ;
    /**//**
    * 清除Cookies
    */

    Cookies.clear
    = function(name) {
      
    if(Cookies.get(name)){
        
    var expdate = new Date();
         expdate.setTime(expdate.getTime()
    - (86400 * 1000 * 1));
         Cookies.set(name,
    "", expdate);
       }

    }
    ;

    Cookies.getCookieVal
    = function(offset){
       
    var endstr = document.cookie.indexOf(";", offset);
       
    if(endstr == -1){
            endstr
    = document.cookie.length;
        }

       
    return unescape(document.cookie.substring(offset, endstr));
    }
    ;
    标签: cookies js | 吐槽(0)