<style type="text/css">
#mylist {
position: relative;
visibility: hidden}
</style>

<script>
function visibilityon() {
document.getelementbyid("mylist").style.visibility="visible"
}
function visibilityoff() {
document.getelementbyid("mylist").style.visibility="hidden"
}
</script>

<input type="button" value="баннеры" onclick="visibilityon()">
<div id="mylist" class="container" ><br>
<a href="http://podil100.com"><img src="http://podil100.com/img/ban.gif"  style="cursor: pointer"><br><br>
<a href="http://liceum100.mybb.ru"><img src="http://physmat.podil100.com/banner_88_33.gif"  style="cursor: pointer"></a><br><br>
<a href="http://google.com"><img src="http://physmat.podil100.com/banner_lic.gif"  style="cursor: pointer"><br><br>
<input type="button" value="скрыть" onclick="visibilityoff()">
</div>