$(document).ready(function(){

    $('#addcomment').live("click", function(e){

        e.preventDefault();

        $('#blogcommentsadd').slideDown('slow');
        $('#addcomment').hide();

    });


    $('#blogcommentsadd_close').live("click", function(e){

        e.preventDefault();

        $('#blogcommentsadd').slideUp('slow');
        $('#addcomment').show();
        
        
        var comment_name = $("#comment_name");
        var comment_name_info = $("#comment_name_info");

        var comment_mail = $("#comment_mail");
        var comment_mail_info = $("#comment_mail_info");

        var comment_detail = $("#comment_detail");
        var comment_detail_info = $("#comment_detail_info");


        comment_name.removeClass("error");
        comment_name.val("");
        comment_name_info.removeClass();

        comment_mail.removeClass("error");
        comment_mail.val("");
        comment_mail_info.removeClass();

        comment_detail.removeClass("error");
        comment_detail.val("");
        comment_detail_info.removeClass();

    });


//global vars
var form = $("#comment_form");

var blog_id = $("#blog_id");

var comment_name = $("#comment_name");
var comment_name_info = $("#comment_name_info");

var comment_mail = $("#comment_mail");
var comment_mail_info = $("#comment_mail_info");

var comment_detail = $("#comment_detail");
var comment_detail_info = $("#comment_detail_info");


//On blur
comment_name.blur(validateName);
comment_mail.blur(validateMail);
comment_detail.blur(validateDetail);
//On key press
comment_name.keyup(validateName);
comment_mail.keyup(validateMail);
comment_detail.keyup(validateDetail);
//On Submitting
form.submit(function(e){

    e.preventDefault();

    if(validateName() & validateMail() & validateDetail()){

            var blog_id_val = blog_id.attr('value');
            var comment_name_val = comment_name.attr('value');
            var comment_mail_val = comment_mail.attr('value');
            var comment_detail_val = comment_detail.attr('value');

            $.ajax({
                    type: "POST",
                    url: 'blogviewpage.php',
                    data: "submit=&blog_id="+blog_id_val+"&comment_name="+comment_name_val+"&comment_mail="+comment_mail_val+"&comment_detail="+comment_detail_val,
                    success: function(){
                        //$('#modal').empty();
                        $('#blogcommentsadd').hide('fade', 600,function() {

                            comment_name.removeClass("error");
                            comment_name.val("");
                            comment_name_info.removeClass();

                            comment_mail.removeClass("error");
                            comment_mail.val("");
                            comment_mail_info.removeClass();

                            comment_detail.removeClass("error");
                            comment_detail.val("");
                            comment_detail_info.removeClass();
                            
                        });

                        location.reload();
                    }
            });

            return true;

    } else {
            return false;
    }

});


$('#reset').click(function(e) {

    //Cancel the link behavior
    e.preventDefault();

    comment_name.removeClass("error");
    comment_name.val("");
    comment_name_info.removeClass();

    comment_mail.removeClass("error");
    comment_mail.val("");
    comment_mail_info.removeClass();

    comment_detail.removeClass("error");
    comment_detail.val("");
    comment_detail_info.removeClass();

});

//validation functions

function validateName(){
	//if it's NOT valid
	if(comment_name.val().length < 3){
            comment_name.addClass("error");
            comment_name_info.addClass("error");
            comment_name_info.removeClass("correct");
            return false;
	}
	//if it's valid
	else{
            comment_name.removeClass("error");
            comment_name_info.removeClass("error");
            comment_name_info.addClass("correct");
            return true;
	}
}

function validateDetail(){
	//if it's NOT valid
	if(comment_detail.val().length < 3){
            comment_detail.addClass("error");
            comment_detail_info.addClass("error");
            comment_detail_info.removeClass("correct");
            return false;
	}
	//if it's valid
	else{
            comment_detail.removeClass("error");
            comment_detail_info.removeClass("correct");
            comment_detail_info.addClass("correct");
            return true;
	}
}

function validateMail(){
        //testing regular expression
        var a = $("#comment_mail").val();
        var filter = /^[a-zA-Z0-9]+[a-zA-Z0-9_.-]+[a-zA-Z0-9_-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+.[a-z]{2,4}$/;
        //if it's valid email
        if(filter.test(a)){
                comment_mail.removeClass("error");
                comment_mail_info.removeClass("correct");
                comment_mail_info.addClass("correct");
                return true;
        }
        //if it's NOT valid
        else{
                comment_mail.addClass("error");
                comment_mail_info.addClass("error");
                comment_mail_info.removeClass("correct");
                return false;
        }
}

});


$(document).ready(function(){

	//how much items per page to show
	var show_per_page = 5;
	//getting the amount of elements inside content div
	var number_of_items = $('#blogcommentsshow').children().size();
	//calculate the number of pages we are going to have
	var number_of_pages = Math.ceil(number_of_items/show_per_page);

	//set the value of our hidden input fields
	$('#current_page').val(0);
	$('#show_per_page').val(show_per_page);

	//now when we got all we need for the navigation let's make it '

	/*
	what are we going to have in the navigation?
		- link to previous page
		- links to specific pages
		- link to next page
	*/

        if(number_of_items > 0){
	var navigation_html = '<a class="previous_link" href="javascript:previous();"><</a>';
	var current_link = 0;
	while(number_of_pages > current_link){
		navigation_html += '<a class="page_link" href="javascript:go_to_page(' + current_link +')" longdesc="' + current_link +'">'+ (current_link + 1) +'</a>';
		current_link++;
	}
	navigation_html += '<a class="next_link" href="javascript:next();">></a>';

	$('#page_navigation').html(navigation_html);

	//add active_page class to the first page link
	$('#page_navigation .page_link:first').addClass('active_page');
        }
	//hide all the elements inside content div
	$('#blogcommentsshow').children().css('display', 'none');

	//and show the first n (show_per_page) elements
	$('#blogcommentsshow').children().slice(0, show_per_page).css('display', 'block');

});

function previous(){

	new_page = parseInt($('#current_page').val()) - 1;
	//if there is an item before the current active link run the function
	if($('.active_page').prev('.page_link').length==true){
		go_to_page(new_page);
	}

}

function next(){
	new_page = parseInt($('#current_page').val()) + 1;
	//if there is an item after the current active link run the function
	if($('.active_page').next('.page_link').length==true){
		go_to_page(new_page);
	}

}
function go_to_page(page_num){
	//get the number of items shown per page
	var show_per_page = parseInt($('#show_per_page').val());

	//get the element number where to start the slice from
	start_from = page_num * show_per_page;

	//get the element number where to end the slice
	end_on = start_from + show_per_page;

	//hide all children elements of content div, get specific items and show them
	$('#blogcommentsshow').children().css('display', 'none').slice(start_from, end_on).css('display', 'block');

	/*get the page link that has longdesc attribute of the current page and add active_page class to it
	and remove that class from previously active page link*/
	$('.page_link[longdesc=' + page_num +']').addClass('active_page').siblings('.active_page').removeClass('active_page');

	//update the current page input field
	$('#current_page').val(page_num);
}