function ddClose() {
if(document.hasChildNodes) {
	var dd = document.getElementsByTagName("DD");
	var temp = 0;
	while(dd.item(temp) !== null) {
		if( dd.item(temp).firstChild.nodeName == "EM") {
			var  y = dd.item(temp);
			while (y.nodeName != "DT") {
				y = y.previousSibling;
			}
			y.style.fontWeight = "bold";
			var img = y.firstChild;
			while (img.nodeName != "IMG") {
				img = img.firstChild;
			}
			img.alt = "詳細を閉じる（javascript使用）";
			img.title = "詳細を閉じる（javascript使用）";
			img.src = "./img/icon_minus.gif";
			while (y != null) {
				if (y.nodeName == "DD") {
					y.style.display = "block";
					temp++;
				}
				y = y.nextSibling;
			}
			temp--;
		} else if(dd.item(temp).className !="date") {
			dd.item(temp).style.display = "none";
			var  z= dd.item(temp);
			while (z.nodeName != "DT") {
				z = z.previousSibling;
			}
			z.style.fontWeight = "normal";
			
			var img = z.firstChild;
			while (img.nodeName != "IMG") {
				img = img.firstChild;
			}
			img.alt = "詳細を開く（javascript使用）";
			img.title = "詳細を開く（javascript使用）";
			img.src = "./img/icon_plus.gif";
		}
		temp++;
	}
}
}

function openCloseDD(obj) {
if(document.hasChildNodes) {
	while (obj.nodeName != "IMG") {
		obj = obj.firstChild;
	}
	var target = obj.parentNode;
	while (target.nodeName != "DT") {
		target = target.parentNode;
	}
	
	while(target != null) {
		if (target.nodeName == "DT") {
			var s1 = target.style.fontWeight;
			if (s1 != "bold") {
				target.style.fontWeight = "bold";
			} else {
				target.style.fontWeight = "normal";
			}
		} 
		if (target.nodeName == "DD" && target.className != "date") {
			var s2 = target.style.display;
			if (s2 != "block") {
				target.style.display = "block";
				obj.alt = "詳細を閉じる（javascript使用）";
				obj.title = "詳細を閉じる（javascript使用）";
				obj.src = "./img/icon_minus.gif";
			} else {
				target.style.display = "none";
				obj.alt = "詳細を開く（javascript使用）";
				obj.title = "詳細を開く（javascript使用）";
				obj.src = "./img/icon_plus.gif";
			}
			target = target.nextSibling;
		} else {
			target = target.nextSibling;
		}
	}
}
}

function openCloseDiscography(target) {
if(document.hasChildNodes) {

    var dl = document.getElementsByTagName("DL");
    var temp = 0;
        
    while(dl.item(temp) !== null) {
        
        if(dl.item(temp).className == target || target == "all") {
            dl.item(temp).style.display = "block";
        } else {
            dl.item(temp).style.display = "none"
        }
        temp++;
    }
}
}

function openCloseTABLE(target) {
if(document.hasChildNodes) {
    var table = document.getElementsByTagName("TABLE");
    var temp = 0;
    
    while(table.item(temp) !== null) {
        
        if(table.item(temp).id == target || target == "all") {
            table.item(temp).style.display = "block";
        } else {
            table.item(temp).style.display = "none"
        }
        temp++;
    }
}
}