// This calls the colorbox:

<script>
		var openColorbox = function() {
			$.colorbox({ href: "pages/custom/download/download.php", width: 304, height: 235, scrolling: false, opacity: 0.5, });
		};

		setTimeout(openColorbox, 3000);
</script>

// This is the download.php file
<?php
$_SESSION["popup"] = true;
?>
<div id="wrapper" style="width: 299px; height: 200px;">
<img src="pages/custom/download/button.jpg" usemap="#Map2" >
<map name="Map2" id="Map2">
  <area shape="rect" coords="255,5,296,20" href="index.php" />
  <area shape="rect" coords="167,142,257,176" href="download.php" />
  <area shape="rect" coords="43,141,134,178" href="index.php" />
</map>
</img>
</div>