JQuery - Practice 1

// FORM SUBMIT HANDLER

$(document).ready(function() {

    $('#formId').submit(function() {
       
        if ($('#formId input[type=checkbox]:checked').length) {               
           
            return confirm("Устгах уу?");
           
        } else {
            alert('Ядаж нэг утга сонгоно уу!');
            return false;
        }

    });

});


//  All Checkbox - Checked, Unchecked
function toggleChecked(status) {

    $(".checkbox").each( function() {
        $(this).attr("checked",status);
    })

}

// Scroll - Anchor + Effect
function goToByScroll(id){

  $('html,body').animate({
    scrollTop: $("#"+id).offset().top
    },'slow');

}

// Calling AJAX
$.ajax({
    url: "/module/action",
    data: "name=name&descr=descr",
    type: "POST",
    beforeSend: function() {
        $('#loader').show();
    },
    complete: function(){
        $('#loader').hide();
    }
})
.done(function(data) {
    // do something ...
});

// TimeLine
var requestSending = false;
var isDone = false;

$(document).ready(function() {
       
    showTimeLine();
       
});
   
$(window).scroll(function() {
    if($(window).scrollTop() == $(document).height() - $(window).height()){
           
        showTimeLine();
           
    }
});
   
function showTimeLine() {
    if (!requestSending && !isDone) {       
        $.ajax({
            url: "/news/more",
            data: "created=" + get_last_created(),
            type: "POST",
            beforeSend: function () {
                requestSending = true;
            },
            success: function(data) {
                    requestSending = false;               
                    // do something ...
                }
                else
                {
                    // do something
                    isDone = true;
                }
            },
            error: function(err){
                requestSending = false;
            }
        });
    }
}

// Object Each Click
 $(document).ready(function() {

    $('.timeLinePublish').live("click",function(){
        alert($(this).attr("id"));
    });

});
<img class="timeLinePublish" id="1" src="publish.png"/>