I wrote a short solution for you. Some people more knowledgeable in JS would know how to create the expand function without the parameter, but I'm no pro.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script type="text/javascript">
/* ================================================== =====
expand
args: string - paragraph's id
ret: void
about: expands paragraph and shows all the text
-----------------------------------------------------------*/
function expand(paragraphName)
{
document.getElementById(paragraphName).className = "";
}
</script>
<style type="text/css">
<!--
/* the paragraph */
p {
width: 30em;
overflow: hidden;
position: relative;
}
/* when the paragraph is not expanded, it will be this tall */
.contracted {
height: 4em;
}
/* the "click to see more" icon */
p img {
position: absolute;
right: 0;
bottom: 0;
}
/* show that it's clickable */
p img:hover {
cursor: pointer;
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<p id="paragraph1" class="contracted">
<img src="http://www.iconfinder.net/data/icons/tango/32x32/actions/format-indent-more.png" alt="click to see more" onclick="expand('paragraph1')"/>
"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
</body>
</html>