function showOsteoPopup() {
    var o = document.getElementById("osteoblock");
    if (!o) return false;
    o.style.display = "block";
}


document.onmousemove = function(e) {
        if (!e) {
            e=event;
            tg = e.srcElement;
        } else tg = e.target;
        if (tg.id=="") return false;
    
        if (tg.id!="osteoarea" && tg.id!="osteoblock") {
            var o = document.getElementById("osteoblock");
            if (!o) return false;
            o.style.display = "none";
        }
    
        return true;
}  

function lightreplace() {
    var h = document.body.clientHeight;
    var w = document.body.clientWidth;
        b = document.getElementById("lightbox");
        b.style.top = h-parseInt(b.style.height)+30 + "px";
    var w1 = w/2 + parseInt(b.style.marginLeft);
        w1 = Math.floor(w - w1);
        b.style.width = w1 + "px";
}

window.onload = lightreplace;
window.onresize = lightreplace;