截取location.search，轉換爲一個對象

截取location.search，轉換爲一個對象：

function formatSearch(se){
            if (typeof se !== "undefined") {    
                se = se.substr(1);
                var arr = se.split("&"),
                    obj = {}, 
                    newarr = [];
                $.each(arr, function(i, v){
                    newarr = v.split("=");
                    if(typeof obj[newarr[0]] === "undefined"){
                        obj[newarr[0]] = newarr[1];
                    }
                });
                return obj;
            };
        }