<!--
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_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_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];}
}

////お気に入りに追加する//////////////////////////////////////////////////////////////////////
function bookmark() {
	if (window.external) {
		window.external.addFavorite("http://rumba.insp.cc/", "社交ダンスショップ　ルンバ");
	}
}


////文字の大きさ//////////////////////////////////////////////////////////////////////////////
var target = "contents";	
//
function setCookie(s){
	cName = "FontSize=";
	exp = new Date();
	exp.setTime(exp.getTime() + 31536000000);
	document.cookie = cName + s + "; path=/; expires=" + exp.toGMTString();
}
//
function getCookie(){
	zoom = "";
	cName = "FontSize=";
	tmpCookie = document.cookie + ";";
	start = tmpCookie.indexOf(cName);
	if (start != -1)
	{
		end = tmpCookie.indexOf(";", start);
		zoom = tmpCookie.substring(start + cName.length, end);
		document.getElementById(target).style.fontSize = zoom;
	} else {
		document.getElementById(target).style.fontSize = "100%";
	}
}
//
function textSizeUp(){
	currentSize = document.getElementById(target).style.fontSize;
	selectSize = "";
	if ( currentSize=="100%" || currentSize=="1.0em"){
		selectSize = "120%";
	} else if(currentSize=="120%") {
		alert("これ以上、文字を大きくすることはできません。");
		selectSize = "120%";
	} else {
		selectSize = "100%";
	}
	document.getElementById(target).style.fontSize = selectSize;
	setCookie(selectSize);
}

function textSizeDefault(){
	currentSize = document.getElementById(target).style.fontSize;
	selectSize = "100%";
	document.getElementById(target).style.fontSize = selectSize;
	setCookie(selectSize);
}

function textSizeDown(){
	currentSize = document.getElementById(target).style.fontSize;
	selectSize = "";
	if ( currentSize=="100%" || currentSize=="1.0em"){
		selectSize = "80%";
	} else if(currentSize=="80%") {
		alert("これ以上、文字を小さくすることはできません。");
		selectSize = "80%";
	} else {
		selectSize = "100%";
	}
	document.getElementById(target).style.fontSize = selectSize;
	setCookie(selectSize);
}

//// DO IT ACTION /////////////////////////////////////////////////////////////////////////////
function doIt(act)
{
	document.Form.Action.value = act;
	document.Form.submit();
}

////スローダウンスクロール////////////////////////////////////////////////////////////////////
function slowdownScroll() {
	if(navigator.appName == "Microsoft Internet Explorer" && document.compatMode == "CSS1Compat") {
		sctop = document.body.parentNode.scrollTop;
	}
	else if(window.pageYOffset){
		sctop = window.pageYOffset;
	} else {
		sctop = document.body.scrollTop;
	}
	if(sctop){
		scup = Math.ceil(sctop*.2);
		scrollBy(0,-scup);
		if (sctop-scup) setTimeout("slowdownScroll()",20);
	}
}

//-->