/*
	Datos de los pics:
	Ancho: 250px
	Alto: 140px
*/
var step = 250;
var current = 1;
var pics = 0;

function nextPic() {
	if (current < pics) {
		current++;
		$('#sidebar_gallery ul').animate({left: '-=' + step}, 'slow');
	}
}

function prevPic() {
	if (current > 1) {
		current--;
		$('#sidebar_gallery ul').animate({left: '+=' + step}, 'slow');
	}
}

$(function () {
	if ($('#sidebar_gallery').length) {
		pics = $('#sidebar_gallery ul li').length;
		$('#sidebar_gallery .next').click( function () { nextPic() } );
		$('#sidebar_gallery .prev').click( function () { prevPic() } );
		$('#sidebar_gallery ul').css('width', step * pics);
	}
});