js关闭子窗口，刷新父窗口

父页面js:
function btnAdd_onclick() {
window.open("xxx.jsp", "","height=600, width=650, top=100, left=200,z-look=yes,toolbar=yes, menubar=no, scrollbars=yes, resizable=yes ,alwaysRaised=yes,
location=no, status=yes" );
}

function refresh()
{
this.location = this.location;
}

子页面JS:

function close()
    {
              window.opener.refresh();//重点就在这里刷新
              window.focus();
              window.opener=null;
              window.close();
  }