The input is for example: 
http://www.ad.nl/actueel/ZZZK51QP4DC.html&May occure often & 
The output should be: 
url1=http://www.ad.nl/actueel/ZZZK51QP4DC.htmlitem1=May occure often 

And this for more lines. 
So the number must increase for the next line. 

$vervang =~ s/http/url1=http/; 
$vervang =~ s/&/item=/g; 
print $vervang; 
@buffer = $vervang; 
print @buffer; 
foreach $teller(0..15) 
{ 
  $telop{"http"} = 'url' . ($teller+1) . '=http'; 
  print $telop; 
} 
foreach $vervang(@buffer) 
{ 
  $vervang =~ s/& http/$telop/gi; 
  print $vervang; 
}