FaustL,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.storyimg{display: none;}
</style>
<script>
var show;
function toggle(cls)
{
show = !show
var divs = document.getElementsByClassName(cls);
for (var i=0; i<divs.length; i++) {divs[i].style.display= show ? 'block':'none'}
}
</script>
</head>
<body>
<a class="yr" onclick="toggle('storyimg');return(false)">Показать картинки</a>
<div class="storyimg">
<img src="...">
</div>
<div class="storyimg">
<img src="...">
</div>
<div class="storyimg">
<img src="...">
</div>
</body>
</html>