Increase maxfilesize for NS files from 50K to 500K.

www/beginexp_form.php3

@@ -377,7 +377,7 @@ function SPITFORM($formfields, $errors)
                       <td class='pad4'>Upload<br>
 			<font size='-1'>(50k&nbsp;max)</font></td>
                       <td class='pad4'>
-                        <input type=hidden name=MAX_FILE_SIZE value=51200>
+                        <input type=hidden name=MAX_FILE_SIZE value=512000>
 	                <input type=file
                                name=exp_nsfile
                                value=\"" . $formfields[exp_nsfile] . "\"

www/nscheck_form.php3

 <?php
 #
 # EMULAB-COPYRIGHT
-# Copyright (c) 2000-2003 University of Utah and the Flux Group.
+# Copyright (c) 2000-2004 University of Utah and the Flux Group.
 # All rights reserved.
 #
 include("defs.php3");
@@ -47,7 +47,7 @@ echo "<tr>
                       </center></td>
 
           <td rowspan>
-              <input type=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"51200\">
+              <input type=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"512000\">
               <input type=\"file\" name=\"exp_nsfile\" size=\"30\">
               <br>
               <br>