请帮帮我，谢谢！

改如下：
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%
out.println("<SCRIPT LANGUAGE=vbscript>\r\n");
out.println("<!--\r\n");
if(ifhavethisuser) {
   if(!ifuseronline) {
      if((((String)session.getAttribute("TOAgent")).equals("yes")) && (((String)session.getAttribute("AgentID")).equals(""))) { %>         sub goback_onclick
    window.location.replace("default.asp")
         end sub
   <%} else {%>
      Sub window_onload
          window.resizeTo 400,400
          dim cdwidth
 cdwidth=window.screen.availWidth-10
          dim cdheight
 cdheight=window.screen.availHeight-30
 window.moveTo (cdwidth-400)/2,(cdheight-250)/2
window.open "mainhome.asp","CDCenter","channelmode=no,directorie         s=no,fullscreen=no,height=" &  cdheight& ",left=0,location=no,menubar=no,resizable=yes,scrollbars=auto,status=no,titlebar=no,toolbar=no,top=0,width=" & cdwidth
settimeout "closeme",3000
         End Sub
sub closeme
window.close 
end sub
<% }
} else {%>
sub goback_onclick
window.location.replace("default.asp")
end sub<% }
} else {
session.setAttribute("HaveRight","");
session.removeAttribute("HaveRight");
%>
sub goback_onclick
window.location.replace("default.asp")
end sub
<%}
out.println("-->\r\n");
out.println("</script>\r\n");
%>