@array = ("/bilder/1.jpg", "/bilder/2.jpg","/bilder/3.jpg", "/bilder/4.jpg","/bilder/5.jpg", "/bilder/6.jpg","/bilder/7.jpg", \ 
	"/bilder/8.jpg", "/bilder/9.jpg","/bilder/10.jpg", "/bilder/11.jpg","/bilder/12.jpg", "/bilder/13.jpg");

if ( defined(param('prev')) )
	{   
 		$i = $i - 1;
 	} 
elsif ( defined(param('next')) )
 	{    
 		$i = $i + 1;
 	}

<form name="form" id="form" method="post" action="/cgi-bin/bilder.pl">
	<table width="100%" border="0" cellspacing="5">
     	<tr> 
       		<td>
       			<div align="right"> 
           			<input name="prev" type="submit" id="prev" value="Prev" />
	         	</div>
        	</td>
		<td> 
			<input name="next" type="submit" id="next" value="Next" />
		</td>
     	</tr>
     	<tr> 
        	<td colspan="2">&nbsp;</td>
     	</tr>
   	</table>
   	<table width="100%" border="0" align="center">
     	<tr> 
       	<td height="584">
		<div align="center"><img src="$array[$i]" /></div></td>
     	</tr>