Refactoring query communication into service

common/css/main.css

@@ -107,6 +107,10 @@
   cursor: pointer;
 }
 
+.pointer:hover {
+  color: #fff;
+}
+
 .pointer {
   cursor: pointer;
 }

common/lib/shared.js

@@ -91,7 +91,7 @@ function top_field_values(docs,field,count) {
 }
 
 function add_to_query(original,field,value,negate) {
-  var not = negate ? "NOT " : "";
+  var not = negate ? "-" : "";
   if(value !== '')
     var query = field + ":" + "\"" + addslashes(value.toString()) + "\"";
   else