Javascript REST Web服务PUT查询

Question

任何人都可以通过javascript按钮帮助我进行PUT操作。

action : function() {
        var selectedRecords = this.view.viewGrid.getSelectedRecords();
        var lengthAr = selectedRecords.length;
        for (var i=0; i < lengthAr ; i++){
        alert(selectedRecords[i].id);
        }
    },

我想更新所有selectedRecords [all]的一列。为此，我必须像这样进行PUT查询： http://wiki.openbravo.com/wiki/JSON_REST_Web_Services：

     {data: {"_identifier":"United States","_entityName":"Country","$ref":"Country\/100","id":"100","client":
{"_identifier":"System","_entityName":"ADClient","$ref":"ADClient\/0","id":"0","active":true},"organization":
{"_identifier":"*","_entityName":"Organization","$ref":"Organization
... truncated for clarity ...
(USA)","_entityName":"ADLanguage","$ref":"ADLanguage\/192","id":"192","active":true},"currency":{"_identifier":
"USD","_entityName":"Currency","$ref":"Currency\/100","id":"100","active":true},"iBANLength":null,"iBANCode":null}}

但我是javascript的新手，我不知道如何做到这一点。我无法解除此代码： 什么是_identifier？不应该是来自selectedRecords [i] .id的ID吗？ 我如何用javascript编写查询？