// Treehouse Parents

$(document).ready(function(){
        $(".tweet").tweet({
            username: "TreehouseTV",
            join_text: "auto",
            avatar_size: null,
            count: 3,
            auto_join_text_default: "null",
            auto_join_text_ed: "null",
            auto_join_text_ing: "null",
            auto_join_text_reply: "null",
            auto_join_text_url: "null",
            loading_text: "loading tweets..."
        });
    });
    
// New Tool Tip Start

/*
 * Url preview script 
 * powered by jQuery (http://www.jquery.com)
 * 
 * written by Alen Grakalic (http://cssglobe.com)
 * 
 *
 */
 
this.screenshotPreview = function(){	
	/* CONFIG */
		
		xOffset = -10;
		yOffset = 5;
		
		// these 2 variable determine popup's distance from the cursor
		// you might want to adjust to get the right result
		
	/* END CONFIG */
	$("a.screenshot").hover(function(e){
		this.t = this.title;
		this.title = "";	
		var c = (this.t != "") ? "" + this.t : "";
		$("body").append("<p id='screenshot'><img src='"+ this.rel +"' />"+ c +"</p>");								 
		$("#screenshot")
			.css("top",(e.pageY - xOffset) + "px")
			.css("left",(e.pageX + yOffset) + "px")
			.fadeIn("fast");						
    },
	function(){
		this.title = this.t;	
		$("#screenshot").remove();
    });	
	//$("a.screenshot").mousemove(function(e){
	//	$("#screenshot")
	//		.css("top",(e.pageY - xOffset) + "px")
	//		.css("left",(e.pageX + yOffset) + "px");
	// });			
};


// starting the script on page load
$(document).ready(function(){
	screenshotPreview();
});

$.fn.infiniteCarousel = function () {

    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }
  
    return this.each(function () {
        var $wrapper = $('> div', this).css('overflow', 'hidden'),
            $slider = $wrapper.find('> ul'),
            $items = $slider.find('> li'),
            $single = $items.filter(':first'),
            
            singleWidth = $single.outerWidth(), 
            visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 1,
            pages = Math.ceil($items.length / visible);            


        // 1. Pad so that 'visible' number will always be seen, otherwise create empty items
        if (($items.length % visible) != 0) {
            $slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
            $items = $slider.find('> li');
        }

        // 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
        $items.filter(':first').before($items.slice(- visible).clone().addClass('cloned'));
        $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
        $items = $slider.find('> li'); // reselect
        
        // 3. Set the left position to the first 'real' item
        $wrapper.scrollLeft(singleWidth * visible);
        
        // 4. paging function
        function gotoPage(page) {
            var dir = page < currentPage ? -1 : 1,
                n = Math.abs(currentPage - page),
                left = singleWidth * dir * visible * n;
            
            $wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, 500, function () {
                if (page == 0) {
                    $wrapper.scrollLeft(singleWidth * visible * pages);
                    page = pages;
                } else if (page > pages) {
                    $wrapper.scrollLeft(singleWidth * visible);
                    // reset back to start position
                    page = 1;
                } 

                currentPage = page;
            });                
            
            return false;
        }
        
        $wrapper.after('<a class="arrow back">&lt;</a><a class="arrow forward">&gt;</a>');
        
        // 5. Bind to the forward and back buttons
        $('a.back', this).click(function () {
            return gotoPage(currentPage + 1);                
        });
        
        $('a.forward', this).click(function () {
            return gotoPage(currentPage - 1);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
    });  
};

$(document).ready(function () {
  $('.infiniteCarousel').infiniteCarousel();
});




// Tabs Start

$(function () {
	    var tabContainers = $('div#treehouse-parents-tabbed-content > div');
	    
	    $('div#treehouse-parents-tabbed-content ul#treehouse-parents-tabs a').click(function () {
	        tabContainers.hide().filter(this.hash).show();
	        
	        $('div#treehouse-parents-tabbed-content ul#treehouse-parents-tabs li a').removeClass('selected');
		$(this).addClass('selected');
	        
	        return false;
	    }).filter(':first').click();
	});
	
$(function () {
	    var tabContainers = $('div#treehouse-parents-tabbed-content > div');
	    
	    $('div#treehouse-parents-tabbed-content ul#treehouse-parents-tabs').click(function () {
	        $('div#treehouse-parents-tabbed-content ul#treehouse-parents-tabs li').removeClass('selected');
		$(this).addClass('selected');
	        
	        return false;
	    }).filter(':first').click();
	});