var bgcolors = new Array("", "#FFDDDD");
function changeBackCol(obj, color) {
	if (document.all || document.getElementById) {  // IEとNN6用
		if (document.all) {
			document.all[obj].style.backgroundColor = bgcolors[color];
		} else {
			document.getElementById(obj).style.backgroundColor = bgcolors[color];
		}
	}
}

// DIV要素の表示・非表示
function ChangeDivVisible(obj, mode) {
	if (document.all || document.getElementById) {  // IEとNN6用
		if (document.all) {
			if (mode == 1) {
				document.all[obj].style.visibility = "visible";
				document.all[obj].style.display = "block";
			} else {
				document.all[obj].style.visibility = "hidden";
				document.all[obj].style.display = "none";
			}
		} else {
			if (mode == 1) {
				document.getElementById(obj).style.visibility = "visible";
				document.getElementById(obj).style.display = "block";
			} else {
				document.getElementById(obj).style.visibility = "hidden";
				document.getElementById(obj).style.display = "none";
			}
		}
	}
}