在JavaScript中获取请求的URL参数[正则]

<script>
function GetLocationParam(param){
var request = {
QueryString : function(val) {
var uri = window.location.search;
var re = new RegExp("" +val+ "=([^&?]*)", "ig");
return ((uri.match(re))?(decodeURI(uri.match(re)[0].substr(val.length+1))):'');
}
}
return request.QueryString(param);
}
var uid=GetLocationParam("uid");
</script>

function getUrlParam(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if (r != null)
return unescape(r[2]);
return null;
}