Improve deleting occurences of recurrent events

UI/WebServerResources/generic.css

@@ -290,6 +290,9 @@ UL.choiceMenu LI._chosen:hover
 { background-color: #9ABCD8;
   color: #fff; }
 
+.menu LI:hover span.muted
+{ color: #fff !important; }
+
 .menu LI.disabled:hover
 { background-color: inherit; }
 
@@ -659,9 +662,13 @@ DIV.dialog.none
   opacity: 1;
   margin: 100px auto; /* top margin could be dynamically set depending on window height */ }
 
-DIV.dialog.none DIV
+DIV.dialog.none > DIV
 { padding: 10px; }
 
+DIV.dialog DIV.muted
+{ font-size: smaller;
+  padding: 0; }
+
 DIV.dialog HR
 { clear: both;
   height: 0px;
@@ -680,10 +687,18 @@ DIV.dialog.none P
 DIV.dialog P.prompt
 { text-align: right; }
 
-DIV.dialog P.list
+DIV.dialog P.list,
+DIV.dialog UL
 { max-height: 200px;
   overflow-y: auto; }
 
+DIV.dialog UL
+{ list-style-type: none;
+  padding-left: 20px; }
+
+DIV.dialog UL LI
+{ margin-bottom: 10px; }
+
 DIV.dialog .button
 { font-family: Lucida Grande, Bitstream VeraSans, Tahoma, sans-serif;
   font-size: 8pt;