var mess = new Array('<td align="right" background="i/main-12.jpg">','<td align="right" background="i/main-07.jpg">','<td align="right" background="i/main-13.jpg">','<td align="right" background="i/main-08.jpg">','<td align="right" background="i/main-11.jpg">');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);