js父页面与子页面不同时显示的方法

functiononNewClick()
{
   varurl="VesselScheduleNEW.aspx";
   if(null!=newWin&&newWin.closed)newWin=null;   
   if(null==newWin)    newWin=window.showModalDialog(url,"newwin","dialogWidth=1000px;dialogHeight=400px;help:no;center:yes;resizable:no;status:no;scroll:no");   
   if(newWin=="OK")
   {
       window.location.reload();
   }
}