Plug-in JavaScript Chapter 5, Example 31 (Click on the icon to view the source for copy and pasting)
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html><head><title>Plug-in JavaScript: Example 31</title>

<script src="PJ.js"></script>
<script>Initialize()</script>

</head><body>

<span id='ghost'>Now you see me...</span> and soon you won't

<script>

window.onload = function()
{
   S('ghost').backgroundColor = 'lightblue'
   Resize('ghost', 128, 32)
   alert('Click OK to see the object disappear')
   Invisible('ghost')
}

</script>