function setCookie(cname, cvalue, exdays) {
    if (exdays === undefined) {
        document.cookie = cname + "=" + cvalue + "; path=/" + "; document=" + document.domain;
    } else {
        var d = new Date();
        d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
        var expires = "expires=" + d.toUTCString();
        document.cookie = cname + "=" + cvalue + "; " + expires + "; path=/" + "; document=" + document.domain;
    }
}

function setCookieSeconds(cname, cvalue, seconds) {
    if (seconds === undefined) {
        document.cookie = cname + "=" + cvalue + "; path=/" + "; document=" + document.domain;
    } else {
        var d = new Date();
        d.setTime(d.getTime() + (seconds * 1000));
        var expires = "expires=" + d.toUTCString();
        document.cookie = cname + "=" + cvalue + "; " + expires + "; path=/" + "; document=" + document.domain;
    }
}


function getCookie(name) {
    var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
    if (arr = document.cookie.match(reg))
        return unescape(decodeURI(arr[2]));
    else
        return null;
}

function SetClientTimeoffset() {
    var d = new Date();
    var offset = d.getTimezoneOffset();
    setCookie("clienttimeoffset", offset, 360);
}