var item_w = 678;

var totalSlides;

var current = 0;

var timer;



function movePanel(index)

{

	var margin = '-' + 300 * index + 'px';

	$('.gallery-holder').animate({'marginLeft': margin}, "slow");



	$('#carousel li a').removeClass('active');

	$('#carousel li a[rel~=' + index + ']').addClass('active');



	current = index;

}





function slideTo()

{

	var margin = '-' + item_w * current + 'px';

	$('.projectile').animate({'marginLeft': margin}, "fast");

}



function nextSlide()

{

    if(current < (totalSlides - 1))

        current++;

    else

        current = 0;



    slideTo();

}



$(document).ready(function(){

    totalSlides = $('#slider .slide').length;

    $('.projectile').width(item_w * totalSlides);



    $('#next-slide').click(function(e){

        e.preventDefault();



        nextSlide();



        clearInterval(timer);

        timer = setInterval(nextSlide, 5000);

    });



    $('#previous-slide').click(function(e){

        e.preventDefault();



        if(current > 0)

            current--;

        else

            current = (totalSlides - 1);



        slideTo();



        clearInterval(timer);

        timer = setInterval(nextSlide, 5000);

    });



    timer = setInterval(nextSlide, 5000);

});