// JavaScript Document
function menu_change(toID,curID,tiName,idName){
    for (var i = 1; i <= toID; i++) {
        document.getElementById(tiName + i).className="t_hide";
        document.getElementById(idName + i).className="hide";
    }
    document.getElementById(tiName + curID).className="t_show";
    document.getElementById(idName + curID).className="show";
}//firefox
function M_C(toID,curID,tiName,idName){
    for (var i = 1; i <= toID; i++) {
        document.getElementById(tiName + i).className="";
        document.getElementById(idName + i).style.display="none";
    }
    document.getElementById(tiName + curID).className="nav_S";
    document.getElementById(idName + curID).style.display="inline";
}