js 获取URL 参数

方法1

	function GetRequest(){
		var url = location.search; //获取url中"?"符后的字串
		var theRequest = new Object();
		if (url.indexOf("?") != -1) {
			var str = url.substr(1);
			strs = str.split("&");
			for (var i = 0; i < strs.length; i++) {
				theRequest[strs[i].split("=")[0]] = unescape(strs[i].split("=")[1]);
			}
		}
		return theRequest;
	}

   var Request = new Object();
            
    Request = GetRequest();
    var r_url = Request['r_url'];

方法2

	function QueryString(item){
		 var sValue=location.search.match(new RegExp("[\?\&]"+item+"=([^\&]*)(\&?)","i"))
		 return sValue?sValue[1]:sValue
	}

var r_url = QueryString('str');