/* 最上部までスムーズにスクロール*/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); } } /* ロールオーバー用JSxxx_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);