/*µ¼º½×ÓÀà*/
function showdivmeun(divname) { 
hiddendiv()
document.getElementById(divname).style.display = "block";
}
function hiddendiv() { 
document.getElementById("about").style.display = "none";
document.getElementById("news").style.display = "none";
document.getElementById("business").style.display = "none";
document.getElementById("hr").style.display = "none";
}