日期:2014-05-17  浏览次数:21006 次

跳转菜单能获取地址栏参数吗?
<select onchange="document.location = this[this.selectedIndex].id;">
<option selected>请选择</option>
<option id="?n=1&t=<%=Request("t")%>">第一项</option>
<option id="?n=2&t=<%=Request("t")%>">第二项</option>
</select>
比如,当前页面为index.asp?t=111
跳转后缺少参数t,直接转到了:“index.asp?n=1&t=”或“index.asp?n=2&t=”,option中的<%=Request("t")%>根本就没有起作用。

请问怎样在option中获取地址栏参数t?

------解决方案--------------------
<%
Dim t 
t=Request("t")
 %>
<script language="JavaScript">
<!--
function select1_Change() {
location.replace("TestLocation.asp?n="+select1.value+"&t=<%=t%>");
}
//-->
</script>
 <body>
 <select name="select1" onchange="select1_Change()">
<option selected>请选择</option>
<option value="1">第一项</option>
<option value="2">第二项</option>
</select>

------解决方案--------------------
HTML code


<script type='text/javascript'>
RegExp.escape = function(str) {
    return (str||'').replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

function changeParam(name, value) {
    name = encodeURIComponent(name);
    var p = name + "=" + encodeURIComponent(value);
    var href = location.href;
    if (!/\?/.test(href))
        return location.href = href.replace(/[^?&=#]+/, '$&?' + p);
    if (new RegExp("\\b" + RegExp.escape(name) + "=", "ig").test(href.split("?")[1]))
        return location.href = href.replace(new RegExp("\\b" + RegExp.escape(name) + "\\=[^&#]*", "ig"), p);
    return location.href = href.replace(/[^?&=#]+\?/, '$&' + p + "&");    
}
</script>


<select name="select1" onchange="changeParam('n', this.value)">
<option selected>请选择</option>
<option value="1">第一项</option>
<option value="2">第二项</option>
</select>

------解决方案--------------------
測試過樓主的代碼沒有問題喔