//----------------------------------------------------------------
//関数：グローバルメニューのロールオーバー
//----------------------------------------------------------------
/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/
function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}


//----------------------------------------------------------------
//関数：指定文字列の除去
//----------------------------------------------------------------
function replaceStr(str){
	str = str.replace("<![CDATA[","");
	str = str.replace("]]>","");
	str = str.replace("<br />"," ");
	str = str.replace("<br/>"," ");
	str = str.replace("<br>"," ");
	return str;
}
//----------------------------------------------------------------
//関数：ブラウザ判別(Mac OS X / Firefox)
//----------------------------------------------------------------
function chkMacFF(){
	var uAgent = navigator.userAgent.toUpperCase();
	var uName = navigator.userAgent.toUpperCase();
	if (uAgent.indexOf("MAC") >= 0 && uName.indexOf("FIREFOX") >= 0) return true;
	return false;
}

//----------------------------------------------------------------
//関数：onload用実行関数
//----------------------------------------------------------------
function FuncOnload(){
	initRollovers();
}

//----------------------------------------------------------------
//イベントハンドラ：onload
//----------------------------------------------------------------
if (window.addEventListener) { //for W3C DOM
  window.addEventListener("load", FuncOnload, false);
} else if (window.attachEvent) { //for IE
  window.attachEvent("onload", FuncOnload);
} else  {
  window.onload = FuncOnload();
}


//----------------------------------------------------------------
//トップへ移動
//----------------------------------------------------------------
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);
    }
}