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;  
      };  
    }
  }
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;  
      };  
    }
  }
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 ; } ; } }
addClass
addClass