by The JavaScript Source
＜スクリプト例＞
<script type="text/javascript">
<!-- Begin
function Swap1over() {
document.image1.src="画像１"
}
function Swap1out() {
document.image1.src="画像２"
}
// End -->
</script>
＜画像入れ替えのIMGタグ＞
<div align="center">
<img src="画像２" name="image1" border="0" onMouseOver="Swap1over()" onMouseOut="Swap1out()">
</div>