var randomnumber;
		var x;
		var books;
		
		books = 4;
		
		randomnumber = Math.floor(Math.random() * books);
		randomnumber = randomnumber + 1;
		
		switch(randomnumber)
			{
			case 1:
				document.write('<br><br><iframe src="http://www.trifind.net/b/best-of-the-us/2010/side/IA2.html" width=130 height=130 frameborder=0 scrolling=no marginwidth=0 marginheight=0></iframe>');
				document.write('<br><br><a href="http://www.trinona.com" target="_blank"><img src="http://www.trifind.net/b/trinona/side.gif"');
				document.write(' border="0"');
				document.write(' alt="Sprint & Olympic Distance Triathlons"></a>');
				break;
			case 2:
				document.write('<a href="http://www.ironmankansas.com" target="_blank"><img src="http://www.trifind.net/b/Z/k/side.jpg"');
				document.write(' border="0"');
				document.write(' alt="ironmankansas.com"></a>');
				document.write('<br><br><a href="http://www.trinona.com" target="_blank"><img src="http://www.trifind.net/b/trinona/side.gif"');
				document.write(' border="0"');
				document.write(' alt="Sprint & Olympic Distance Triathlons"></a>');
				break;
			case 3:
				document.write('<a href="http://www.bluffcreektri.com" target="_blank"><img src="http://www.trifind.net/b/hickory-grove/side.gif"');
				document.write(' border="0"');
				document.write(' alt="Triathlon Information"></a>');
				document.write('<br><br><a href="http://www.trinona.com" target="_blank"><img src="http://www.trifind.net/b/trinona/side.gif"');
				document.write(' border="0"');
				document.write(' alt="Sprint & Olympic Distance Triathlons"></a>');
				break;
			case 4:
				document.write('<br><br><iframe src="http://www.trifind.net/b/best-of-the-us/2010/side/IA1.html" width=130 height=130 frameborder=0 scrolling=no marginwidth=0 marginheight=0></iframe>');
				document.write('<br><br><a href="http://www.trinona.com" target="_blank"><img src="http://www.trifind.net/b/trinona/side.gif"');
				document.write(' border="0"');
				document.write(' alt="Sprint & Olympic Distance Triathlons"></a>');
				break;
			}