#!/usr/bin/perl
use CGI;
$x=new CGI;
print $x->header;
$number = $x->param('number');
$file = '/home/syrett/public_html/kpsuobs.txt';
open(FILE,"$file")||die"Can't open $file file: $!\n";
@file = <FILE>;
close FILE;
# ABOVE PULLS NUMBER FROM text box
if ($number eq ""){
$number = 12
}

#FOLLOWING IS HTML TAGS
#print "Content-type: text/html\n\n";
print "<html>";
print "<head>";
print "<TITLE>METAR Observations (KPSU ASOS)</TITLE>";
print "</head>";
print "<BODY BGCOLOR=#FFFFFF><CENTER><A HREF=\"http://www.meteo.psu.edu/~syrett/kpsu.shtml\">";
print "Return to the KPSU ASOS page</A></CENTER>";
print "<HR>";
print "<CENTER><TABLE WIDTH=350><TR VALIGN=MIDDLE><TD ALIGN=RIGHT>";
print "<FORM METHOD=\"POST\" ACTION=\"ReturnKPSUObs.cgi\">";
print "Station ID: PSU <BR>";
print "Number of Obs: <INPUT TYPE=\"TEXT\" NAME=\"number\" VALUE=$number SIZE=4>";
print "</TD><TD ALIGN=CENTER><BR><INPUT TYPE=\"SUBMIT\" VALUE=\"Get Observations\">";
print "</FORM>";
print "</TD></TR></TABLE><HR>Most Current Observation Is On Top</CENTER><PRE>";

#USES NUMBERS PULLED TO OUTPUT LINES OF TEXT
@last_lines = splice(@file,($#file-$number + 1),$number + 1);
#$,="<br>\n";
print reverse(@last_lines);
#print "</PRE>";


#REST OF HTML CODE
print "<HR><CENTER><A HREF=\"http://www.meteo.psu.edu/~syrett/kpsu.shtml\">";
print "Return to the KPSU ASOS Page</A></CENTER>";
print "<HR SIZE=1 WIDTH=\"100%\">";
print "</font>";
print "</body>";
print "</html>";
exit;






