(function($){

// Creating the sweetPages jQuery plugin:
$.fn.sweetPages = function(opts){
	
	// If no options were passed, create an empty opts object
	if(!opts) opts = {};
	
	var resultsPerPage = opts.perPage || 3;
	
	// The plugin works best for unordered lists, althugh ols would do just as well:
	var ul = this;
	var li = ul.find('li');
	
	li.each(function(){
		// Calculating the height of each li element, and storing it with the data method:
		var el = $(this);
		el.data('height',el.outerHeight(true));
	});
	
	// Calculating the total number of pages:
	var pagesNumber = Math.ceil(li.length/resultsPerPage);
	
	// If the pages are less than two, do nothing:
	if(pagesNumber<2) return this;

	// Creating the controls div:
	var swControls = $('<div class="swControls">');
	
    swControls.append('<a href="" class="swShowNextPrevious red"> &lt; </a>');
	for(var i=0;i<pagesNumber;i++)
	{
		// Slice a portion of the lis, and wrap it in a swPage div:
		li.slice(i*resultsPerPage,(i+1)*resultsPerPage).wrapAll('<div class="swPage" />');
		
		// Adding a link to the swControls div:
		swControls.append('<a href="" id="control_' + (i+1) + '" class="swShowPage">'+(i+1)+'</a>');
	}
    swControls.append('<a href="" class="swShowNextPrevious red"> &gt; </a>');

	ul.append(swControls);
	
	var maxHeight = 0;
	var totalWidth = 0;
	
	var swPage = ul.find('.swPage');
	swPage.each(function(){
		
		// Looping through all the newly created pages:
		
		var elem = $(this);
		
		totalWidth+=elem.outerWidth();
		
		elem.css('float','left').width(ul.width());
	});
	
	swPage.wrapAll('<div class="swSlider" />');
	
	// Setting the height of the ul to the height of the tallest page:
	var swSlider = ul.find('.swSlider');
	swSlider.append('<div class="clear" />').width(totalWidth);

	var hyperLinks = ul.find('a.swShowPage');
	
	hyperLinks.click(function(e){
		
		// If one of the control links is clicked, slide the swSlider div 
		// (which contains all the pages) and mark it as active:

		$(this).addClass('active').siblings().removeClass('active');
		
		swSlider.stop().animate({'margin-left':-(parseInt($(this).text())-1)*ul.width()},'slow');
		e.preventDefault();
	});
    
	
	// Mark the first link as active the first time this code runs:
	hyperLinks.eq(0).addClass('active');
	
	// Next / Previous
	var nextPrevious = ul.find('a.swShowNextPrevious');
	
	nextPrevious.click(function(e)
    {
        current = parseInt($('.swControls').find('a.active').text());
        $new = current;
		if ($(this).text() == ' < ')
        {
            if (current != 1)
            {
                $new = current - 1;
            }
        }
        else
        {   
            if (current != swPage.size())
            {
                $new = current + 1;
            }
        }
        
        $('.swControls a').removeClass('active');
        $('.swControls #control_' + $new).addClass('active');
		swSlider.stop().animate({'margin-left':-(parseInt($new)-1)*ul.width()},'slow');
		e.preventDefault();
	});
	
	return this;
	
}})(jQuery);
