nl_tokens: / * 注销事件
pl_tokens: function ( oTarget , sEventType , fnHandler ) { if ( oTarget . listeners && oTarget . listeners [ sEventType ] ) { var listeners = oTarget . listeners [ sEventType ] ; for ( var i = listeners . length - 1 ; i >= 0 && fnHandler ; i -- ) { if ( listeners [ i ] == fnHandler ) { listeners . splice ( i , 1 ) ; } } if ( ( ! listeners . <mask> || ! fnHandler ) && listeners [ "_handler" ] ) { oTarget . removeEventListener ? oTarget . removeEventListener ( sEventType , listeners [ "_handler" ] , false ) : oTarget . detachEvent ( 'on' + sEventType , listeners [ "_handler" ] ) ; delete oTarget . listeners [ sEventType ] ; } } }