// À̹ÌÁö ·Ñ¿À¹ö¸¦ ÇÑ´Ù.
var  baseImgURL;
function imgON(obj)
{
     baseImgURL = obj.src;
     obj.src = obj.src.replace("off", "on");
}
function imgOFF(obj)
{
     obj.src = baseImgURL;
}

// ¸Þ´º ·¹À̾î visible/hidden 
function shownon(showobj) {
//	document.write(showobj);
	document.all[showobj].style.visibility = "visible"
}
function hidenon(hideobj) {
	document.all[hideobj].style.visibility = "hidden"
}