// Alphabet List
function DisplayMenu(index) {
        for (i=1; i<=26; i++)
        if (index == i) {
        thisMenu = eval("menu" + index + ".style");
        thisMenu.display = "";
        } 
        else {
        otherMenu = eval("menu" + i + ".style"); 
        otherMenu.display = "none"; 
        }
}