@array = (0..9,a..z,A..Z);
srand;
foreach (1..5) 
{    
	$rand = int(rand scalar(@array));    
	push (@selected, $rand);
}

##</code><code>##

for ($i; $i<5; $i++)
{
	print "<img src='image_dir/$selected[$i].jpg' border=0>";
}

##</code><code>##

$check_var = "@selected";