<script>
function toggle(objid) {
var obj = document.getElementById(objid);
if(obj.style.display == "none")
obj.style.display = "block";
else
obj.style.display = "none";
}
</script>
<a href="#" onclick="toggle('testlayer');">Hide/Show</a>
<div id="testlayer" style="display: none;">
Hidden Text
</div>
