獲取url中的中文參數

function getUrlParam(name) {
            var url = window.location.search; //獲取url中"?"符後的字串   
            var theRequest = new Object();
            if (url.indexOf("?") != -1) {
                var str = url.substr(1);
                strs = str.split("&");
                for (var i = 0; i < strs.length; i++) {
                    //就是這句的問題
                    theRequest[strs[i].split("=")[0]] = decodeURI(strs[i].split("=")[1]);
                    //之前用了unescape()
                    //纔會出現亂碼  
                }
            }
            return theRequest[name];
        }