/* Top of Page */

<!-- 
function backToTop() { 
var x1 = x2 = x3 = 0; 
var y1 = y2 = y3 = 0; 
if (document.documentElement) { 
x1 = document.documentElement.scrollLeft || 0; 
y1 = document.documentElement.scrollTop || 0; 
} 
if (document.body) { 
x2 = document.body.scrollLeft || 0; 
y2 = document.body.scrollTop || 0; 
} 
x3 = window.scrollX || 0; 
y3 = window.scrollY || 0; 
var x = Math.max(x1, Math.max(x2, x3)); 
var y = Math.max(y1, Math.max(y2, y3)); 
window.scrollTo(Math.floor(x / 2), Math.floor(y / 2)); 
if (x > 0 || y > 0) { 
window.setTimeout("backToTop()", 25); 
} 
} 

// -->


/* navi */
<!--

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];}
}

//-->


/* 
ロールオーバー用JS
xxx_off.jpg ＝　元画像
xxx_over.jpg ＝　マウスON時画像
*/

function setRollOver() {
	if (!document.getElementsByTagName) return false;
	var ovrImgList = document.getElementsByTagName('img');
	for (var i = 0; i < ovrImgList.length; i++) {
		if (ovrImgList[i].src.match(/_off\./i)) {
			var loadedImg = new Image();
			loadedImg.src = ovrImgList[i].src.replace(/_off\./i, '_over.');
			ovrImgList[i].onmouseover = function() { 
				this.src = this.src.replace(/_off\./i, '_over.');
			}
			ovrImgList[i].onmouseout = function() { 
				this.src = this.src.replace(/_over\./i, '_off.');
			}
			ovrImgList[i].onmouseup = function() { 
				this.src = this.src.replace(/_over\./i, '_off.');
			}
		}
	}
	return true;
}
if (window.addEventListener) window.addEventListener('load', setRollOver, false);
if (window.attachEvent) window.attachEvent('onload', setRollOver);