var d = new Date();

function switchFontSize(c_name, val) {
    var bd = document.getElementById('MasterBody');
    switch (val) {
        case 'increase':
            if (CurrentFontSize + 1 < 13) {
                CurrentFontSize++;
                bd.className = "fs" + CurrentFontSize;
            }
            break;
        case 'decrease':
            if (CurrentFontSize - 1 > 0) {
                CurrentFontSize--;
                bd.className = "fs" + CurrentFontSize;
            }
            break;
        default:
            CurrentFontSize = val;
            bd.className = "fs" + CurrentFontSize;
    }
    setCookie(c_name, CurrentFontSize, 1);
}

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

function getCookie(c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=");
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) c_end = document.cookie.length;
            return unescape(document.cookie.substring(c_start, c_end));
        }
    }
    return "";
}

function checkCookieCurrentFontSize(c_name, val, expiredays) {
    var value = getCookie(c_name);
    if (value != null && value != "") {
        CurrentFontSize = value;
    }
    else {
        setCookie(c_name, val, expiredays);
    }
}

function showMessage(message) {
    alert(message);
}

function ShowHideControl(show, elementId) {
    if (show) {
        document.getElementById(elementId).style.visibility = 'hidden';
        document.getElementById(elementId).style.display = 'none';
    }
    else {
        document.getElementById(elementId).style.visibility = 'visible';
        document.getElementById(elementId).style.display = 'inline';
    }

    show = !show;
}

function EnableAllCheckBoxes() {
    var c = new Array();
    c = document.getElementsByTagName('input');
    for (var i = 0; i < c.length; i++) {
        if (c[i].type == 'checkbox') {
            c[i].disabled = false;
        }
    }
}

function CheckUnCheckCheckBox(chkBoxId) {
    document.getElementById(chkBoxId).checked = !document.getElementById(chkBoxId).checked;
}

function ExpandCollapse(elementId, imgElementId) {
    if (document.getElementById(elementId).style.visibility == 'visible' || document.getElementById(elementId).style.visibility == '') {
        document.getElementById(elementId).style.visibility = 'hidden';
        document.getElementById(elementId).style.display = 'none';
        document.getElementById(imgElementId).src = "Images/expand.jpg";
    }
    else {
        document.getElementById(elementId).style.visibility = 'visible';
        document.getElementById(elementId).style.display = 'inline';
        document.getElementById(imgElementId).src = "Images/collapse.jpg";
    }
}