function mOver(id) {
    document.getElementById(id).src = "images/" + id + "-.jpg";
}
function mOut(id) {
    document.getElementById(id).src = "images/" + id + ".jpg";
}

function ShowDiv(id) {   
    document.getElementById(id).style.display = "";
}

function HideDiv(id) {
    document.getElementById(id).style.display = "none";
}