Sorted a few &nbsp to $nbsp;

functions/page_header.php

@@ -57,10 +57,10 @@
       echo "<TABLE BGCOLOR=\"$color[4]\" BORDER=0 COLS=2 WIDTH=100% CELLSPACING=0 CELLPADDING=2><TR>";
       echo "      <TD ALIGN=left WIDTH=70%>";
       $urlMailbox = $mailbox;
-      echo "         <A HREF=\"compose.php?mailbox=$urlMailbox\">" . _("Compose") . "</A>&nbsp&nbsp";
-      echo "         <A HREF=\"addressbook.php\">" . _("Addresses") . "</A>&nbsp&nbsp";
-      echo "         <A HREF=\"folders.php\">" . _("Folders") . "</A>&nbsp&nbsp";
-      echo "         <A HREF=\"options.php\">" . _("Options") . "</A>&nbsp&nbsp";
+      echo "         <A HREF=\"compose.php?mailbox=$urlMailbox\">" . _("Compose") . "</A>&nbsp;&nbsp;";
+      echo "         <A HREF=\"addressbook.php\">" . _("Addresses") . "</A>&nbsp;&nbsp;";
+      echo "         <A HREF=\"folders.php\">" . _("Folders") . "</A>&nbsp;&nbsp;";
+      echo "         <A HREF=\"options.php\">" . _("Options") . "</A>&nbsp;&nbsp;";
       echo "      </TD><TD ALIGN=right WIDTH=30%>";
       echo "         <A HREF=\"http://squirrelmail.sourceforge.net/index.php3?from=1\" TARGET=_top>SquirrelMail</A>";
       echo "      </TD>";