$(function() {
     GetLocalTimeOffset();
});


function GetLocalTimeOffset() {
    if (readCookie("LocalTimeOffset") == null) {
        var rightNow = new Date();
        var hoursDiffStdTime = (rightNow.getTimezoneOffset() / 60);
        hoursDiffStdTime = hoursDiffStdTime * (-1);
        createCookie("LocalTimeOffset", hoursDiffStdTime, 30);
    }
}

function createCookie(name, value, days) {
    if (days && days > 0) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        var expires = "; expires=" + date.toGMTString();
    }
    else
        var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}