function tabToJSON(id) {
        var trs = document.getElementById(id).getElementsByTagName("tr");//獲得tr陣列
        var titles = trs[0].getElementsByTagName("td");    //獲得表頭td陣列
        var json = "";
        for(var i = 1; i < trs.length; i++) {
            var tds = trs[i].getElementsByTagName("td");    
            json += "{"
 
; 
            //拼裝json
            for(var j = 0; j < tds.length; j++) 
                json += titles[j].innerHTML + ":" + tds[j].innerHTML + ",";
            json = json.substring(0, json.length - 1) + "},";
        }
        json = "[" + json.substring(0, json.length - 1) + "]";
        document.getElementById("test"
 
).innerHTML = json;
    }


    function tabToJSONForJquery(id) {
        var titles = $("#" + id).find("tr:first td");    //獲得表頭td陣列
        //遍歷非表頭的，tr、td...拼裝json
        var json = "[" + $("#" + id).find("tr:not(:first)").map(function(i, e) {
            return "{" + $(e).children("td").map(function
 
(j, el) {
                return $(titles[j]).html() + ":" + $(el).html();
            }).get().join(",") + "}";
        }).get().join(",") + "]";
        $("#test").html(json);
    }