function naviimg(navi01,navi02){

	var id_name;

	for(i=1; i<=navi02; i++) {

	id_name = "detail_0" + i;
		if(navi01==i){
			document.getElementById(id_name).style.visibility='visible';
		}else{
			document.getElementById(id_name).style.visibility='hidden';
		}

	}
}
function swImg(iName,str)
{
	document.images[iName].src = str;
}

function changeImage(w,h) {
  document.img.width = w;
  document.img.height = h;
}