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 "";
}

// Zoomin code
function zoomin() 
{
    var newZoom = parseInt(document.body.style.zoom) + 10 + '%';
    document.body.style.zoom = newZoom;
    setCookie('zoom', newZoom, 1);
    document.getElementById('txtZoom').value = newZoom + "";
} 
//Zoomout code
function zoomout() 
{
    var newZoom = parseInt(document.body.style.zoom) - 10 + '%';
    document.body.style.zoom = newZoom;
    setCookie('zoom', newZoom, 1);
    document.getElementById('txtZoom').value = newZoom + "";
}

//Zoomfix code
function zoomfix(z) {
    var newZoom = z + '%';
    document.body.style.zoom = newZoom;
    setCookie('zoom', newZoom, 1);
    document.getElementById('txtZoom').value = newZoom + "";
}

function zoomload() {
    if (getCookie('zoom') == null || getCookie('zoom') == '') {
        setCookie('zoom', '100%', 1);
    }
    var newZoom = getCookie('zoom');
    document.body.style.zoom = newZoom;
    document.getElementById('txtZoom').value = newZoom + "";
}