code: public void addJavaScriptValues(Map<String, String> parameterMap) {
          for (String parameterName : parameterMap.keySet()) {
              this.javascriptExpressions.put(parameterName, parameterMap.get(parameterName));
          }
      }
docs: Adds a set of javascript expressions to be passed from client to server.
  
  @param parameterMap a map containing the name of a parameter as key and a javascript
  expression as value
  @see #addJavaScriptValue(String, String)