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];}
}
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 openDicWin(URL){
	window.open(URL, 'Yuki', 'width=680,height=490,top=70,left=70,resizable=no,scrollbars=yes,menubar=no,toolbar=no,directories=no,location=no,status=no');
}

function changeClass(i,c){
 if(document.all) document.all(i).className=c;
 else if(document.getElementById)
  document.getElementById(i).className=c; 
}

function setnav(obj){
	if(document.getElementById){
		document.getElementById(obj).style.display=='none' ? document.getElementById(obj).style.display='': document.getElementById(obj).style.display='none';
	}
	else if(document.all){
		document.all(obj).style.display=='none' ? document.all(obj).style.display='' : document.all(obj).style.display='none';
		}
	else if(document.layers){
		document.layers[obj].display=='none' ? document.layers[obj].display='' : document.layers[obj].display='none';
		}
}

var Win=(navigator.userAgent.indexOf("Win")!=-1);
var Mac=(navigator.userAgent.indexOf("Mac")!=-1);
var Explorer=(navigator.appName.indexOf("Explorer")!=-1);
var Netscape=(navigator.appName.indexOf("Netscape")!=-1);
var Version=navigator.appVersion.charAt(0);

var exec;
function getSCR(){
	var x=0
	var y=0;
	if(Explorer){
			x=document.body.scrollLeft;y=document.body.scrollTop;
	}else if(Netscape && Version=="5"){
			x=window.scrollX;y=window.scrollY;
	}else if(Netscape && Version=="4"){
			x=window.pageXOffset;y=window.pageYOffset;
	}
	return {x:x,y:y};
}

//スクロール実行部
function goSCR(x,y,cnt){
	var step=50;
	var rewrt=3;
	exec=getSCR();
	if(cnt++<step){
			var p=cnt/step;
			var q=p-1/Math.PI*Math.sin(Math.PI*p);
			var x_=exec.x+(x-exec.x)*q;
			var y_=exec.y+(y-exec.y)*q;
			window.scrollTo(x_,y_);
			setTimeout("goSCR("+x+","+y+","+cnt+");",rewrt);
	}
	getSCR();
}
function jumpToPageTop(){
	goSCR(0,0,0);
}