var mess = new Array(
'<img src="http://www.alrci.com/images/random/1.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/2.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/3.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/4.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/5.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/6.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/7.jpg" border="0" alt="" width="301" height="200" />',
'<img src="http://www.alrci.com/images/random/8.jpg" border="0" alt="" width="301" height="200" />');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);