var randomnumber;
		var x;
		var books;
		
		books = 7;
		
		randomnumber = Math.floor(Math.random() * books);
		randomnumber = randomnumber + 1;
		
		switch(randomnumber)
			{
			case 1:
				document.write('<a href="http://www.captextri.com/" target="_blank"><img src="http://www.trifind.net/b/capital-of-texas/1.jpg"');
				document.write(' border="0"');
				document.write(' alt="triathlon information"></a>');
				break;
			case 2:
				document.write('<a href="http://www.captextri.com/" target="_blank"><img src="http://www.trifind.net/b/capital-of-texas/2.jpg"');
				document.write(' border="0"');
				document.write(' alt="triathlon information"></a>');
				break;
			case 3:
				document.write('<a href="http://www.captextri.com/" target="_blank"><img src="http://www.trifind.net/b/capital-of-texas/3.jpg"');
				document.write(' border="0"');
				document.write(' alt="triathlon information"></a>');
				break;
			case 4:
				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>');
				break;
			case 5:
				document.write('<a href="http://www.dallassportsuniversity.com" target="_blank"><img src="http://www.trifind.net/b/dallas/side.gif"');
				document.write(' border="0"');
				document.write(' alt="dallas area events"></a>');
				break;
			case 6:
				document.write('<a href="http://www.dallassportsuniversity.com" target="_blank"><img src="http://www.trifind.net/b/dallas/side.gif"');
				document.write(' border="0"');
				document.write(' alt="dallas area events"></a>');
				break;
			}