JS怎么用onclick选定下拉菜单中的某一项啊？
贴个代码.就是想加个功能.按"当前地址"按钮的时候。下来菜单也跟着跳到相对应的选项..选项对应当前的IP地址
- HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>久久家具网</title><script type="text/javascript" src="./jquery-1.7.min.js"></script><script type="text/javascript" src="./select.js"></script><script language="JavaScript" type="text/javascript" src="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js"></script></head><body><select name="selectProvince" id="s_province"> <option>下拉省</option> </select><select name="selectCity" id="s_city"> <option>下拉市</option> </select><select name="selectCounty" id="s_county"> <option>下拉区</option> </select> <script type="text/javascript"> $(function () { $("#s_province").ProCity("s_city", "s_county"); });</SCRIPT><input type="button" value="确定" onclick="checkit()"><input type="button" value="当前地址" onclick="nowplace()"><script type="text/javascript">function checkit () { if ($("#s_province option[value=" + $("#s_province").val() + "]").text()==="请选择"){ alert("请选择省份") } else if($("#s_city option[value=" + $("#s_city").val() + "]").text()==="请选择"){ alert("请选择市") } else{ alert("省：" + $("#s_province option[value=" + $("#s_province").val() + "]").text() + "\n" +"市：" + $("#s_city option[value=" + $("#s_city").val() + "]").text()+"\n" +"区："+$("#s_county option[value=" + $("#s_county").val() + "]").text()) alert("市：" + change(s1)) }}function nowplace () { alert("省：" + remote_ip_info.province + "\n" +"市：" + remote_ip_info.city +"\n" +"区："+remote_ip_info.district ) }alert("\n"+ "\n"+ "您的IP：" + remote_ip_info.start + "\n" + "所属国家：" + remote_ip_info.country + "\n" + "所属省：" + remote_ip_info.province + "\n" + "所属市：" +remote_ip_info.city + "\n" +"所属区：" +remote_ip_info.district +"\n" + "isp： " +remote_ip_info.isp + "\n" + "type:" +remote_ip_info.type +"\n" +"desc:" + remote_ip_info.desc );</script><script language="JavaScript" type="text/javascript" src="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js"></script><script src="./provinceCity.js" type="text/javascript"></script></body></html>贴个JS文件的地址：http://www.jia99.com//webconfig/jia99/101/TPL/default/js/provinceCity.js
[解决办法]
alert("省：" + remote_ip_info.province + "\n" +"市：" + remote_ip_info.city +"\n" +"区："+remote_ip_info.district )
既然你获得了这些值。。直接传过去呗。。