if select值=? then
rs1.open
else
rs2.open
end if

如果再多的话，用select case

转载于"愿望"
<script>
getit = function (id) {
return(document.getElementById(id));
}

process = function () {
var f = getit('form1');
f.action = getit('otype').value;
f.submit();
}
</script>
<form id="form1" method="post">
<select id="otype">
<option value="xw.asp">新闻</option>
<option value="cp.asp">产品</option>
<option value="sm.asp">说明</option>
</select>
<input type="text" name="keyword">
<input type="submit" onclick="process();" value="搜索">
</form>