스왑이미지

<!--head안에 삽입-->
<script language="JavaScript" type="text/JavaScript">
function change_img(swImg){
 document.all.change.src = "image/" + swImg +".jpg";
}
</script>

<!--body안에 삽입-->
<img src="images/test.jpg" width="100" height="100"  onMouseOver="change_img('큰이미지이름')">