/* --------------------------------------------- JavaScript
 * 概要 選択画像をメイン表示させる
 * ----------------------------------------------------- */
function set_img(strImgId){
	var objMainImg = document.getElementById("mainImage");
	var objMainComment = document.getElementById("comment");
	var objSelImg = document.getElementById("tn"+strImgId);
	var objSelComment = document.getElementById("tncm"+strImgId);

	objMainImg.src = objSelImg.src;
	objMainComment.innerHTML = objSelComment.value;

	comment.style.visibility = (objSelComment.value=="") ? "hidden" : "visible";

}