///该文件定义了一些jQuery扩展
///	<param name="url" type="String">
///     处理请求的地址
///</param>
///	<param name="dataMap" type="String">
///     参数，json格式的字符串
///</param>
///	<param name="fnSuccess" type="function">
///     请求成功后的回调函数
///</param>
$.ajaxWebService = function(url, dataMap, fnSuccess, sync) {
    var Async=true;
    if(arguments.length==4)
    {
        Async=sync;
    }
    $.ajax({
        type: "POST",
        contentType: "application/json",
        url: url,
        data: dataMap,
        dataType: "json",
        async:Async,
        success: fnSuccess
        
    });
};