适应所有浏览器的cookie

//设置cookie的方法 weiying
function SetCookie(a, b) {
    
    var d = new Date();
    var v = arguments;
    var c = arguments.length;
    var e = (c > 2) ? v[2] : null;
    var p = (c > 3) ? v[3] : null;
    var m = (c > 4) ? v[4] : window.location.host;
    var r = (c > 5) ? v[5] : false;
    m = SiteDomain;
    if (e != null) {
        var T = parseFloat(e);
        var U = e.replace(T, "");
        T = (isNaN(T) || T <= 0) ? 1 : T;
        U = ("snhdwmqy".indexOf(U) == -1 || U == "") ? 's' : U.toLowerCase();
        switch (U) {
            case 's': d.setSeconds(d.getSeconds() + T); break;
            case 'n': d.setMinutes(d.getMinutes() + T); break;
            case 'h': d.setHours(d.getHours() + T); break;
            case 'd': d.setDate(d.getDate() + T); break;
            case 'w': d.setDate(d.getDate() + 7 * T); break;
            case 'm': d.setMonth(d.getMonth() + 1 + T); break;
            case 'q': d.setMonth(d.getMonth() + 1 + 3 * T); break;
            case 'y': d.setFullYear(d.getFullYear() + T); break
        }
    }
    else {
        var expiresDays = 360;
        //将date设置为360天以后的时间
        d.setSeconds(d.getSeconds() + expiresDays * 24 * 3600 * 1000);
    }
    var strCookie=a + "=" + escape(b) + ((e == null) ? "" : ("; expires=" + d.toGMTString())) + ((p == null) ? ("; path=/") : ("; path=" + p)) + ("; domain=" + m) + ((r == true) ? "; secure" : "");
    //alert(strCookie);
    document.cookie = strCookie;
}

function getCookieVal(a) {
    var b = document.cookie.indexOf(";", a);
    if (b == -1) b = document.cookie.length;
    return unescape(document.cookie.substring(a, b))
}
function GetCookie(a) {
    var v = a + "=";
    var i = 0;
    while (i < document.cookie.length) {
        var j = i + v.length;
        if (document.cookie.substring(i, j) == v) return getCookieVal(j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break
    }
    return null
}
function delCookie(a) {
    var e = new Date();
    e.setTime(e.getTime() - 1);
    var b = getCookie(a);
    document.cookie = a + "=" + a + ";path=/; domain=" + window.location.host + "; expires=" + e.toGMTString()
}