/*
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(c)Sapphirus.Biz

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Ex.) ¥¤¥á¡¼¥¸¥Õ¥¡¥¤¥?Ömenu1_off.gif¡×¡Ö menu1_over.gif¡×
<img src="menu1_off.gif" />
*/
function setRollOver() {
	var loadedImg = new Array();
	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)) {
			loadedImg[i] = new Image();
			loadedImg[i].src = ovrImgList[i].src.replace(/_off\./i, '_over.');
			ovrImgList[i].onmouseover = function() { // ¥Þ¥¦¥¹¥ª¡¼¥Ð¡¼
				this.src = this.src.replace(/_off\./i, '_over.');
			}
			ovrImgList[i].onmouseout = function() { // ¥Þ¥¦¥¹¥¢¥¦¥È
				this.src = this.src.replace(/_over\./i, '_off.');
			}
			if (navigator.userAgent.indexOf('MSIE') < 0) ovrImgList[i].onmouseup = function() { // ¥¯¥?Ã¥¯¸å¤Î¥í¡¼¥?ª¡¼¥Ð¡¼²??
				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);