whole_func_string: function _addClass( element,cName ){  
      if (!element) return;
      if (typeof element.className === 'string') {
        if( !_hasClass( element,cName ) ){
          if (stringUtils.isEmpty(element.className))
            element.className += cName;
          else
            element.className += " " + cName;  
        };  
      }
    }
func_code_string: function _addClass( element,cName ){  
      if (!element) return;
      if (typeof element.className === 'string') {
        if( !_hasClass( element,cName ) ){
          if (stringUtils.isEmpty(element.className))
            element.className += cName;
          else
            element.className += " " + cName;  
        };  
      }
    }
func_documentation_string: addClass