/*
	イメージのロールオーバー 汎用タイプ
	2008.01.25 (c) fujiwara@khaibit.jp
	http://www.coolwebwindow.com/weblife_column/coolweb/000128.php
*/

/*
<img src="images/image_off.gif" alt="menu"
	id="image1" 
	onMouseOver="ImgRollOn('image1','images/image_on.gif')" 
	onMouseOut="ImgRollOff('image1')">
*/

var defImg;
function ImgRollOn(target, img){
	if(document.getElementById){
		defImg = document.getElementById(target).getAttribute("src");
		document.getElementById(target).setAttribute("src", img);
	}
}
function ImgRollOff(target){
	if(document.getElementById){
		document.getElementById(target).setAttribute("src",defImg);
	}
}