javascript:nextAd() 不循环最后一张出现undefined

<%sub showpiclist(Nname,Nnum,Ncount,Nurl,istext,ww,hh)%>
<table width="99%" border="0" cellspacing="0" cellpadding="0">
<%dim tid,i,picrs
i=1
cols=2
set picrs=server.CreateObject("adodb.recordset")
sql="select typeid from type_table where typename='"&Nname&"'"
picrs.open sql,conn,1,3
if picrs.bof and picrs.eof then
else
tid=picrs("typeid")
end if
picrs.close
if Ncount=0 then
sql="select * from pic where topbook<>2 and typeid like '"&tid&"%' and prdpic<>"""" order by id desc"
else
sql="select top "&Ncount&" * from pic where topbook<>2 and typeid like '"&tid&"%' and prdpic<>"""" order by id desc"
end if
picrs.open sql,conn,1,1
while not picrs.eof
%><sc

javascript JavaScript JAVASCRIPT Javascript javaScript next语句 next door next day 关于next for next