$header =~ s/^\s+//; #remove leading spaces
$header =~ s/\s+$//; #remove trailing spaces

$header_in_db =~ s/^\s+//; #remove leading spaces
$header_in_db =~ s/\s+$//; #remove trailing spaces
	
if ($header eq $header_in_db) {
 $Already_in_DB = 1; 
 print "<b>ALREADY IN DATABASE</b><br>";
}