function ajaxYzm(yzm, backFunction) {
    var parm = { "yzm": yzm };
    ajaxTextPost("/UserVerifyCode.aspx", parm, backFunction);
}
function ajaxDown(id, backFunction) {
    var parm = { "id": id };
    ajaxTextPost("/search", parm, backFunction);
}
function ajaxTextPost(link, parm, backFunction) {
    $.ajax({
        type: "POST",
        //contentType: "application/json; charset=utf-8",
        url: link,
        data: parm,
        dataType: "text", //json
        async: false,
        success: function (data) {
            backFunction(data);
        },
        error: function (e) {
            alert("发生错误:" + e.responseText);
        }
    });
}
function ajaxJsonPost(link, parm, backFunction) {
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        url: link,
        data: parm,
        dataType: "json",
        async: false,
        success: function (data) {
            backFunction(data);
        },
        error: function (e) {
            alert("发生错误:" + e.responseText);
        }
    });
}