r = 2;
var seed = Math.random();
rnd = Math.ceil(seed * r); 
switch (rnd) {
case 1:
document.writeln("<script src=\"http:\/\/u.1133.cc\/showpage.php?pid=143527&show_t=2\" language=\"javascript\"><\/script>")
break;
case 2:
document.writeln("<script src=\"http:\/\/u.1133.cc\/showpage.php?pid=143527&show_t=2\" language=\"javascript\"><\/script>")
default:
break;
}