diff --git a/mozilla/webtools/testopia/Bugzilla/Testopia/TestCase.pm b/mozilla/webtools/testopia/Bugzilla/Testopia/TestCase.pm
index 70b8b842859..eccf0fdd5d0 100644
--- a/mozilla/webtools/testopia/Bugzilla/Testopia/TestCase.pm
+++ b/mozilla/webtools/testopia/Bugzilla/Testopia/TestCase.pm
@@ -1421,7 +1421,7 @@ sub update_deps {
     $fields->{'blocked'} = $blocks;
 # From process bug
     foreach my $field ("dependson", "blocked") {
-        if ($fields->{$field}) {
+        if (exists $fields->{$field}) {
             my @validvalues;
             foreach my $id (split(/[\s,]+/, $fields->{$field})) {
                 next unless $id;
diff --git a/mozilla/webtools/testopia/template/en/default/testopia/case/show.html.tmpl b/mozilla/webtools/testopia/template/en/default/testopia/case/show.html.tmpl
index 42d20d9f22c..a4c50a9cf18 100644
--- a/mozilla/webtools/testopia/template/en/default/testopia/case/show.html.tmpl
+++ b/mozilla/webtools/testopia/template/en/default/testopia/case/show.html.tmpl
@@ -362,12 +362,12 @@ Ext.onReady(function(){
                                 border: false,
                                 height: 200,
                                 autoScroll: true,
-                                html:'[% FOREACH dep = case.blocked %]<a href="tr_show_case.cgi?case_id=[% dep.id FILTER none %]" title="[% dep.summary %]">[% dep.id FILTER none %]</a>[% END %]'
+                                html:'[% FOREACH dep = case.blocked %]<a href="tr_show_case.cgi?case_id=[% dep.id FILTER none %]" title="[% dep.summary %]">[% dep.id FILTER none %]</a> [% END %]'
                             },{
                                 border: false,
                                 height: 200,
                                 autoScroll: true,
-                                html:'[% FOREACH dep = case.dependson %]<a href="tr_show_case.cgi?case_id=[% dep.id FILTER none %]" title="[% dep.summary %]">[% dep.id FILTER none %]</a>[% END %]'
+                                html:'[% FOREACH dep = case.dependson %]<a href="tr_show_case.cgi?case_id=[% dep.id FILTER none %]" title="[% dep.summary %]">[% dep.id FILTER none %]</a> [% END %]'
                             }]
                         }]
                     }]
diff --git a/mozilla/webtools/testopia/tr_process_case.cgi b/mozilla/webtools/testopia/tr_process_case.cgi
index 8899a0a9078..3b9a82b027a 100755
--- a/mozilla/webtools/testopia/tr_process_case.cgi
+++ b/mozilla/webtools/testopia/tr_process_case.cgi
@@ -49,7 +49,7 @@ ThrowUserError('testopia-missing-object',{object => 'case'}) unless $case;
 if ($action eq 'edit'){
     print $cgi->header;
     ThrowUserError("testopia-read-only", {'object' => $case}) unless $case->canedit;
-    
+
     my $newtcaction = $cgi->param('tcaction') || '' if $cgi->param('tcaction');
     my $newtceffect = $cgi->param('tceffect') || '' if $cgi->param('tceffect');
     my $newtcsetup  = $cgi->param('tcsetup') || '' if $cgi->param('tcsetup');
@@ -60,14 +60,14 @@ if ($action eq 'edit'){
     $case->set_case_status($cgi->param('status')) if $cgi->param('status');
     $case->set_priority($cgi->param('priority')) if $cgi->param('priority');
     $case->set_isautomated($cgi->param('isautomated') eq 'on' ? 1 : 0) if $cgi->param('isautomated');
-    $case->set_script($cgi->param('script')) if $cgi->param('script');
-    $case->set_arguments($cgi->param('arguments')) if $cgi->param('arguments');    
+    $case->set_script($cgi->param('script')) if exists $cgi->{'script'};
+    $case->set_arguments($cgi->param('arguments')) if exists $cgi->{'arguments'};    
     $case->set_summary($cgi->param('summary')) if $cgi->param('summary');
-    $case->set_requirement($cgi->param('requirement')) if $cgi->param('requirement');
-    $case->set_dependson($cgi->param('tcdependson')) if $cgi->param('tcdependson');
-    $case->set_blocks($cgi->param('tcblocks')) if $cgi->param('tcblocks');
-    $case->set_default_tester($cgi->param('tester')) if $cgi->param('tester');
-    $case->set_estimated_time($cgi->param('estimated_time')) if $cgi->param('estimated_time');
+    $case->set_requirement($cgi->param('requirement')) if exists $cgi->{'requirement'};
+    $case->set_dependson($cgi->param('tcdependson')) if exists $cgi->{'tcdependson'};
+    $case->set_blocks($cgi->param('tcblocks')) if exists $cgi->{'tcblocks'};
+    $case->set_default_tester($cgi->param('tester')) if exists $cgi->{'tester'};
+    $case->set_estimated_time($cgi->param('estimated_time')) if exists $cgi->{'estimated_time'};
     
     $case->add_to_run($cgi->param('addruns'));
     $case->add_tag($cgi->param('newtag'));
diff --git a/mozilla/webtools/testopia/tr_process_plan.cgi b/mozilla/webtools/testopia/tr_process_plan.cgi
index 1261facd081..9f3bc86aa68 100755
--- a/mozilla/webtools/testopia/tr_process_plan.cgi
+++ b/mozilla/webtools/testopia/tr_process_plan.cgi
@@ -161,7 +161,7 @@ elsif ($action eq 'edit'){
     $plan->set_type($cgi->param('type')) if $cgi->param('type');
     $plan->set_name($cgi->param('name')) if $cgi->param('name');
     
-    if($cgi->param("plandoc")){
+    if(exists $cgi->{"plandoc"}){
         my $newdoc = $cgi->param("plandoc");    
         if($plan->diff_plan_doc($newdoc) ne ''){
             $plan->store_text($plan->id, Bugzilla->user->id, $newdoc);
diff --git a/mozilla/webtools/testopia/tr_process_run.cgi b/mozilla/webtools/testopia/tr_process_run.cgi
index 41b44bf3396..8c9b11c9479 100755
--- a/mozilla/webtools/testopia/tr_process_run.cgi
+++ b/mozilla/webtools/testopia/tr_process_run.cgi
@@ -58,7 +58,7 @@ if ($action eq 'edit'){
     $run->set_build($cgi->param('build')) if $cgi->param('build');
     $run->set_environment($cgi->param('environment')) if $cgi->param('environment');
     $run->set_manager($cgi->param('manager')) if $cgi->param('manager');
-    $run->set_notes($cgi->param('run_notes')) if $cgi->param('run_notes');
+    $run->set_notes($cgi->param('run_notes')) if exists $cgi->{'run_notes'};
     $run->set_stop_date($timestamp) if $cgi->param('status');
     
     $run->update();