/* ----------------------
  Functions 																																																										---------------------- */
//Back to Top page function
$(function() {
	$(window).scroll(function() {
		if ($(this).scrollTop() != 0) {
			$('#toTop').fadeIn();
		} else {
			$('#toTop').fadeOut();
		}
	});
	$('#toTop').click(function() {
		$('body,html').animate({
			scrollTop: 0
		},
		800);
	});
});

$(document).ready(function(){
	//Banner Effect on the Home page
	$("#myController").jFlow({
		slides: "#slides",  // the div where all your sliding divs are nested in
		controller: ".jFlowControl", // must be class, use . sign
		slideWrapper: "#jFlowSlide", // must be id, use # sign
		selectedWrapper: "jFlowSelected",  // just pure text, no sign
		width: "440px",  // this is the width for the content-slider
		height: "280px",  // this is the height for the content-slider
		duration: 400,  // time in miliseconds to transition one slide
		prev: ".jFlowPrev", // must be class, use . sign
		next: ".jFlowNext" // must be class, use . sign
	});
	//Adds active class to the menu selected
	$('#main_menu').menuSelector({
	   targetElements: 'li a', // links used to compare with window location
	   defaultSelected: 'false', // li:first, false = nothing selected by default
	   activeClass:'activeClass', // defaults to 'active'
	   activeParent:'li', // if is set, active class will be set to this parent element, instead of target elements
	   onNoEltSelected: function(){
			// your custom code here, if needed
	   }
	});
	//Adds active class to the services menu selected
	$('#services_menu').menuSelector({
	   targetElements: 'li a', // links used to compare with window location
	   defaultSelected: 'li:first', // li:first, false = nothing selected by default
	   activeClass:'activeClass', // defaults to 'active'
	   activeParent:'li', // if is set, active class will be set to this parent element, instead of target elements
	   onNoEltSelected: function(){
		
	   }
	});
	//--- NEWS pagination controls ---
	//how much items per page to show
	var show_per_page = 6;
	//getting the amount of elements inside content div
	var number_of_items = $('#news_list').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
	*/
	var navigation_html = '<a class="previous_link" href="javascript:previous();">Prev</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();">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
	$('#news_list').children().css('display', 'none');
	//and show the first n (show_per_page) elements
	$('#news_list').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
	$('#news_list').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);
}