js获取querystring
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript" language="javascript">
function QueryString(){
var name,value,i;
var str = location.search;
var num=str.indexOf("?")
str=str.substr(num+1);
if (str != "") {
var arrtmp = str.split("&");
for (i = 0; i < arrtmp.length; i++) {
num = arrtmp[i].indexOf("=");
if (num > 0) {
name = arrtmp[i].substring(0, num);
value = arrtmp[i].substr(num + 1);
this[name] = value;
}
}
}
}
function GetQueryString(){
var strQuery = new QueryString();
var queryName = document.getElementById("txtQuery").value;
var value = strQuery[queryName];
alert(value)
}
</script>
</head>
<body>
<input type="text" id="txtQuery" />
<input type="button" onclick="GetQueryString()"></input>
</body>
</html>
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