function setCookie(c_name, value, exdays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + exdays);
    var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
    document.cookie = c_name + "=" + c_value;
}

function getCookie(c_name) {
    var i, x, y, ARRcookies = document.cookie.split(";");
    for (i = 0; i < ARRcookies.length; i++) {
        x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
        y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
        x = x.replace(/^\s+|\s+$/g, "");
        if (x == c_name) {
            return unescape(y);
        }
    }
}

function checkCookie() {
    var username = getCookie("username");
    if (username != null && username != "") {
        alert("Welcome again " + username);
    }
    else {
        username = prompt("Please enter your name:", "");
        if (username != null && username != "") {
            setCookie("username", username, 365);
        }
    }
}

function setTab(pTabID) {
    var selectedTab;
    if (pTabID != '') {
        setCookie('Tab', pTabID, 730);
    }
    selectedTab = getCookie('Tab');
    if (selectedTab != 'F' && selectedTab != 'T') {
        selectedTab = 'F';
    }
    document.getElementById('TabX').className = 'FITabHidden';
    document.getElementById('TabF').className = 'FITabHidden';
    document.getElementById('TabT').className = 'FITabHidden';
    document.getElementById('TabSelF').className = 'FITabSelOff';
    document.getElementById('TabSelT').className = 'FITabSelOff';
    document.getElementById('Tab' + selectedTab).className = 'FITab';
    document.getElementById('TabSel' + selectedTab).className = 'FITabSel';
}