离开 页面的 弹框 屏蔽 成功 哈哈哈

sa:='function stoprefresh()'+
'{ ' +
'return undefined; ' +
'} window.onbeforeunload=stoprefresh; ' +
'window.onunload =stoprefresh;' ;
// showmessage('1');
( self.webbrowser1 .Document as ihtmldocument2).parentWindow.execScript(sa,'JavaScript') ;
application.ProcessMessages; sleep(111); application.ProcessMessages; sleep(111); application.ProcessMessages; sleep(111); application.ProcessMessages; sleep(111); application.ProcessMessages; sleep(111);