var flag = false;
var name = "menu_flg";			// クッキーの名前
var value = {};					// クッキーの値
var period = 0.5;
var nowtime = new Date().getTime();
var clear_time = new Date(nowtime + (60 * 60 * 24 * 1000 * period));
var expires = clear_time.toGMTString();

/*プルダウンメニュー*/
function pullDown(id) {
	if (document.getElementById) {
		if (document.getElementById(id).style.display == "none") {
			value = "block";
		} else {
			value = "none";
		}
		document.getElementById(id).style.display = value;
	} else if (document.all) {
		value = document.all(id).style.display;
		if (document.all(id).style.display == "none") {
			value = "block";
		} else {
			value = "none";
		}
		document.all(id).style.display = value;
	} else if (document.layers) {
		value = document.layers[id].display;
		if (document.layers[id].display == "none") {
			value = "block";
		} else {
			value = "none";
		}
		document.layers[id].display = value;
	}
	flag = !flag;
	document.cookie = name + "_" + id + "=" + escape(value) + "; expires=" + expires;
}

/*プルダウンメニュー(画面ロード時)*/
function loadPullDown() {
	if (document.cookie) {
		var cookies = document.cookie.split("; ");
		for (var i = 0; i < cookies.length; i++) {
			var str = cookies[i].split("=");
			str[0].match(/menu_flg_(\w+)/);
			if (RegExp.$1 != '') {
				value = str[1];
				id = RegExp.$1;
				if(value != null){
					if (document.getElementById(id)) {
						document.getElementById(id).style.display = value;
					} else if (document.all(id)) {
						document.all(id).style.display = value;
					} else if (document.layers) {
						document.layers[id].display = value;
					}
				}
			}
		}
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}