一篇javascript處理cookie的文章

var sel = new Object();
var sel_num = 0;
function getCookieVal(offset) {
    var endstr = document.cookie.indexOf(";", offset);
    if (endstr == -1) endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}
 function GetCookie(name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    //alert(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 null;
}

function SetCookie(name, value, expires, path, domain, secure) {
    document.cookie = name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
 
    return value;
}

function DeleteCookie(name) {
    if (GetCookie(name) != null) {
        SetCookie(name, "", null, "/", null);
    }
}

function cookie_content() {
    i = 0;
    var content = "";
    for (key in sel) {
        if (i == 0) {
            content += key + "[" + sel[key] + "]";
        }
        else {
            content += "," + key + "[" + sel[key] + "]";
        } i++;
    }
    return content;
}
function inni_data() {
    var cookie_sel = new Object();
    cookie_str = GetCookie("Member_COOKIE");
    if (cookie_str != "" && cookie_str != null) {
        cookie_sel = cookie_str.split(',');
        for (var k = 0; k < cookie_sel.length; k++) {
            i = cookie_sel[k].indexOf("[");
            j = cookie_sel[k].indexOf("]");
            sel[cookie_sel[k].substring(0, i)] = cookie_sel[k].substring(i + 1, j);
            sel_num++;
        }
        draw();
    }
}

function addMember(id, nm) {

    if (!sel[id]) {
        sel_num++; sel[id] = nm;
    }
    else
    {sel[id] = nm;}

    SetCookie("Member_COOKIE", cookie_content(), null, "/", null);
 
}
function draw() {
    out = '';
    for (key in sel) {
       $("#"+key).val(sel[key] );
    
    }
     
}