--- loncom/interface/loncommon.pm	2006/03/21 21:49:30	1.319
+++ loncom/interface/loncommon.pm	2006/04/04 15:11:26	1.325
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.319 2006/03/21 21:49:30 albertel Exp $
+# $Id: loncommon.pm,v 1.325 2006/04/04 15:11:26 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2801,7 +2801,8 @@ form, .inline { display: inline; }
 style="margin-top: 0px;$addstyle" $addentries>
 END
     &Apache::lontexconvert::jsMath_reset();
-    if ($env{'environment.texengine'} eq 'jsMath') {
+    if ($env{'environment.texengine'} eq 'jsMath' ||
+	$env{'form.texengine'}        eq 'jsMath' ) {
 	$bodytag.=&Apache::lontexconvert::jsMath_header();
     }
 
@@ -3006,7 +3007,7 @@ sub headtag {
 	$env{'internal.head.redirect'} = $url;
 	$result.=<<ADDMETA
 <meta http-equiv="pragma" content="no-cache" />
-<meta HTTP-EQUIV="Refresh" CONTENT="2; url=$url" />
+<meta HTTP-EQUIV="Refresh" CONTENT="$time; url=$url" />
 ADDMETA
     }
     if (!defined($title)) {
@@ -3014,7 +3015,6 @@ ADDMETA
     }
     
     $result .= '<title> LON-CAPA '.&mt($title).'</title>'.$head_extra;
-    
     return $result;
 }
 
@@ -3051,8 +3051,8 @@ Inputs: $title - optional title for the
 =cut
 
 sub head {
-    my ($title,$head_extra) = @_;
-    return &headtag($title,$head_extra).&endheadtag();
+    my ($title,$head_extra,$args) = @_;
+    return &headtag($title,$head_extra,$args).&endheadtag();
 }
 
 =pod
@@ -3078,6 +3078,8 @@ Inputs: $title - optional title for the
                   bgcolor        -> override the default page bg color
                   js_ready       -> return a string ready for being used in 
                                     a javascript writeln
+                  html_encode    -> return a string ready for being used in 
+                                    a html attribute
                   force_register -> if is true will turn on the &bodytag()
                                     $forcereg arg
 
@@ -3091,7 +3093,7 @@ sub start_page {
     my %head_args;
     foreach my $arg ('redirect','force_register') {
 	if (defined($args->{$arg})) {
-	    $head_args{$arg} = $args->{$args};
+	    $head_args{$arg} = $args->{$arg};
 	}
     }
 
@@ -3107,6 +3109,9 @@ sub start_page {
     if ($args->{'js_ready'}) {
 	$result = &js_ready($result);
     }
+    if ($args->{'html_encode'}) {
+	$result = &html_encode($result);
+    }
     return $result;
 }
 
@@ -3121,6 +3126,8 @@ Returns a complete </body></html> sectio
 Inputs:         $args - additional optional args supported are:
                  js_ready     -> return a string ready for being used in 
                                  a javascript writeln
+                 html_encode  -> return a string ready for being used in 
+                                 a html attribute
 =back
 
 =cut
@@ -3133,15 +3140,26 @@ sub end_page {
     if ($args->{'js_ready'}) {
 	$result = &js_ready($result);
     }
+    if ($args->{'html_encode'}) {
+	$result = &html_encode($result);
+    }
     return $result;
 }
 
-sub js_ready {
+sub html_encode {
     my ($result) = @_;
+
     $result = &HTML::Entities::encode($result,'<>&"');
+    
+    return $result;
+}
+sub js_ready {
+    my ($result) = @_;
 
-    $result =~ s/[\n\r]/ /g;
-    $result =~ s/'/\\'/g;	
+    $result =~ s/[\n\r]/ /xmsg;
+    $result =~ s/\\/\\\\/xmsg;
+    $result =~ s/'/\\'/xmsg;
+    $result =~ s{</script>}{</scrip'+'t>}xmsg;
     
     return $result;
 }