--- loncom/auth/lonlogin.pm	2010/05/06 16:15:59	1.137
+++ loncom/auth/lonlogin.pm	2011/03/03 06:37:30	1.147
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Login Screen
 #
-# $Id: lonlogin.pm,v 1.137 2010/05/06 16:15:59 bisitz Exp $
+# $Id: lonlogin.pm,v 1.147 2011/03/03 06:37:30 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -69,6 +69,7 @@ sub handler {
 	return OK;
     }
 
+    $env{'form.firsturl'} =~ s/(`)/'/g;
 
 # -------------------------------- Prevent users from attempting to login twice
     my $handle = &Apache::lonnet::check_for_valid_session($r);
@@ -130,6 +131,7 @@ sub handler {
     }
     my $role    = $r->dir_config('lonRole');
     my $loadlim = $r->dir_config('lonLoadLim');
+    my $uloadlim= $r->dir_config('lonUserLoadLim');
     my $servadm = $r->dir_config('lonAdmEMail');
     my $tabdir  = $r->dir_config('lonTabDir');
     my $include = $r->dir_config('lonIncludes');
@@ -149,18 +151,17 @@ sub handler {
 	$loadavg=<$loadfile>;
     }
     $loadavg =~ s/\s.*//g;
-    my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
-    my $userloadpercent=&Apache::lonnet::userload();
 
-# ------------------------------------------------------- Do the load balancing
-    my $otherserver= &Apache::lonnet::absolute_url($host_name);
+    my ($loadpercent,$userloadpercent);
+    if ($loadlim) {
+        $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
+    }
+    if ($uloadlim) {
+        $userloadpercent=&Apache::lonnet::userload();
+    }
+
     my $firsturl=
     ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
-# ---------------------------------------------------------- Are we overloaded?
-    if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
-        my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
-	if ($unloaded) { $otherserver=$unloaded; }
-    }
 
 # ----------------------------------------------------------- Get announcements
     my $announcements=&Apache::lonnet::getannounce();
@@ -269,11 +270,7 @@ my $loginbox_header_bgcol=&Apache::lonco
 my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
 my $logo=&Apache::loncommon::designparm('login.logo',$domain);
 my $img=&Apache::loncommon::designparm('login.img',$domain);
-my $domainlogo='<div>'.&Apache::loncommon::domainlogo($domain).'</div>';
-my $login=&Apache::loncommon::designparm('login.login',$domain);
-if ($login eq '') {
-$login = $iconpath.'/'.&mt('userauthentication.gif');
-}
+my $domainlogo=&Apache::loncommon::domainlogo($domain);
 my $showbanner = 1;
 my $showmainlogo = 1;
 if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
@@ -285,7 +282,6 @@ if (defined(&Apache::loncommon::designpa
 my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
 my $showcoursecat =
 &Apache::loncommon::designparm('login.coursecatalog',$domain);
-my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
 my $shownewuserlink = 
 &Apache::loncommon::designparm('login.newuser',$domain);
 my $now=time;
@@ -318,6 +314,14 @@ this.document.client.elements.upass$now.
 this.document.server.submit();
 return false;
 }
+
+function enableInput() {
+    this.document.client.elements.upass$now.removeAttribute("readOnly");
+    this.document.client.elements.uname.removeAttribute("readOnly");
+    this.document.client.elements.udom.removeAttribute("readOnly");
+    return;
+}
+
 // ]]>
 </script>
 
@@ -330,7 +334,8 @@ my %add_entries = (
 	       text         => "$font",
 	       link         => "$link",
 	       vlink        => "$vlink",
-	       alink        => "$alink",);
+	       alink        => "$alink",
+               onload       => 'javascript:enableInput();',);
 
 $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
 			       { 'redirect'       => [$expire,'/adm/roles'], 
@@ -380,7 +385,7 @@ $r->print(
 #
 
 $r->print(<<ENDSERVERFORM);
-<form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
+<form name="server" action="/adm/authenticate" method="post" target="_top">
    <input type="hidden" name="logtoken" value="$logtoken" />
    <input type="hidden" name="serverid" value="$lonhost" />
    <input type="hidden" name="uname" value="" />
@@ -403,14 +408,9 @@ if ($shownewuserlink) {
 my $logintitle =
     '<h2 class="LC_hcell"'
    .' style="background:'.$loginbox_header_bgcol.';'
-   .' color:'.$loginbox_header_textcol.'">';
-if ($loginheader eq 'text') {
-    $logintitle .= $lt{'log'};
-} else {
-    $logintitle .= '<img src="'.$login.'"'.
-                   ' alt="'.&mt('User Authentication').'" />';
-}
-$logintitle .= '</h2>';
+   .' color:'.$loginbox_header_textcol.'">'
+   .$lt{'log'}
+   .'</h2>';
 
 my $noscript_warning='<noscript><span class="LC_warning"><b>'
                      .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
@@ -424,11 +424,11 @@ my $loginform=(<<LFORM);
   <input type="hidden" name="lextkey" value="$lextkey" />
   <input type="hidden" name="uextkey" value="$uextkey" />
   <b><label for="uname">$lt{'un'}</label>:</b><br />
-  <input type="text" name="uname" id="uname" size="15" value="$authusername" /><br />
+  <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" /><br />
   <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
-  <input type="password" name="upass$now" id="upass$now" size="15" /><br />
+  <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
   <b><label for="udom">$lt{'dom'}</label>:</b><br />
-  <input type="text" name="udom" id="udom" size="15" value="$authdomain" /><br />
+  <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" /><br />
   <input type="submit" value="$lt{'log'}" />
 </form>
 LFORM
@@ -442,7 +442,7 @@ LFORM
 HEADER
     }
     $r->print(<<ENDTOP);
-<div style="float:left;">
+<div style="float:left;margin-top:0;">
 <div class="LC_Box" style="background:$loginbox_bg;">
   $logintitle
   $loginform
@@ -465,13 +465,11 @@ ENDTOP
     }
 $r->print(<<ENDTOP);
 $announcements
-$domainlogo
 </div>
 <hr style="clear:both;" />
 ENDTOP
-
-$r->print(<<ENDDOCUMENT);
-     <table border="0" cellspacing="0" cellpadding="0">
+    my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
+    $domainrow = <<"END";
       <tr>
        <td  align="left" valign="top">
         <small><b>$lt{'dom'}:&nbsp;</b></small>
@@ -480,6 +478,8 @@ $r->print(<<ENDDOCUMENT);
         <small><tt>&nbsp;$domain</tt></small>
        </td>
       </tr>
+END
+    $serverrow = <<"END";
       <tr>
        <td  align="left" valign="top">
         <small><b>$lt{'serv'}:&nbsp;</b></small>
@@ -488,6 +488,9 @@ $r->print(<<ENDDOCUMENT);
         <small><tt>&nbsp;$lonhost ($role)</tt></small>
        </td>
       </tr>
+END
+    if ($loadlim) {
+        $loadrow = <<"END";
       <tr>
        <td align="left" valign="top">
         <small><b>$lt{'load'}:&nbsp;</b></small>
@@ -496,6 +499,10 @@ $r->print(<<ENDDOCUMENT);
         <small><tt>&nbsp;$loadpercent $lt{'perc'}</tt></small>
        </td>
       </tr>
+END
+    }
+    if ($uloadlim) {
+        $userloadrow = <<"END";
       <tr>
        <td align="left" valign="top">
         <small><b>$lt{'userload'}:&nbsp;</b></small>
@@ -504,12 +511,32 @@ $r->print(<<ENDDOCUMENT);
         <small><tt>&nbsp;$userloadpercent $lt{'perc'}</tt></small>
        </td>
       </tr>
+END
+    }
+    if (($version ne '') && ($version ne '<!-- VERSION -->')) {
+        $versionrow = <<"END";
       <tr>
        <td colspan="2" align="left">
         <small>$version</small>
        </td>
       </tr>
+END
+    }
+
+$r->print(<<ENDDOCUMENT);
+    <div style="float: left;">
+     <table border="0" cellspacing="0" cellpadding="0">
+$domainrow
+$serverrow
+$loadrow    
+$userloadrow
+$versionrow
      </table>
+    </div>
+    <div style="float: right;">
+    $domainlogo
+    </div>
+    <br style="clear:both;" />
  </div>
 
 <script type="text/javascript">