function showLarger(prefix, fileName) {

	if (prefix == 'BC')			{ width = '470' ; height = '315' ; }
	else if (prefix == 'PC')	{ width = '475' ; height = '365' ; }
	else if (prefix == 'MAG')	{ width = '470' ; height = '315' ; }
	else if (prefix == 'STK')	{ width = '470' ; height = '315' ; }
	else if (prefix == 'FGC')	{ width = '700' ; height = '355' ; }
	else if (prefix == 'OVS')	{ width = '650' ; height = '355' ; }
	else if (prefix == 'BRC')	{ width = '525' ; height = '450' ;
 }
	else if (prefix == 'POC')	{ width = '525' ; height = '380' ;
 }

	else if (prefix == 'RCK')	{ width = '269' ; height = '650' ;
 }

	else if (prefix == 'RIP')	{ width = '610' ; height = '297' ;
 }

	else if (prefix == 'EVP')	{ width = '610' ; height = '311' ;
 }
 	else if (prefix == 'GCT')	{ width = '400' ; height = '670' ;
 }
  	else if (prefix == 'GCW')	{ width = '630' ; height = '440' ;
 }

	else if (prefix == 'CEVP')	{ width = '610' ; height = '311' ;
 }

	else if (prefix == 'LH')	{ width = '473' ; height = '650' ;
 }

	else if (prefix == 'CLH')	{ width = '473' ; height = '650' ;
 }

	else if (prefix == 'IV')	{ width = '421' ; height = '690' ;
 }

	else if (prefix == 'FLY')	{ width = '520' ; height = '727' ;
 }
 	else if (prefix == 'DH')	{ width = '240' ; height = '627' ;
 }


	else if (prefix == 'FOL')	{ width = '800' ; height = '592' ;
 }

	else if (prefix == 'CNP')	{ width = '309' ; height = '493' ;
 }


	else						{ width = '470' ; height = '315' ; }
	
	settings	= 'resizable=yes,scrollbars=no,HEIGHT='+height+',WIDTH='+width ;
	imageURL	= 'viewlarger.php?prefix='+prefix+'&filename='+fileName ;
	var windowName = "window"+windowCount;
	window.open(imageURL, windowName, settings) ;
	windowCount++;
}