/*
Elkgirl js doc - updated: July 2011

jQuery Slider by Jacob Gube: http://sixrevisions.com/tutorials/javascript_tutorial/create-a-slick-and-accessible-slideshow-using-jquery/

*/

var dY = new Date(); //date used in footer


//jquery slider	
$(document).ready(function(){
	var currentPosition = 0;
	var slideWidth = 480;
	var slides = $('.slide');
	var numberOfSlides = slides.length;

	// Remove scrollbar in JS
	$('#slidesContainer').css('overflow', 'hidden');

	// Wrap all .slides with #slideInner div
	slides
		.wrapAll('<div id="slideInner"></div>')
		// Float left to display horizontally, readjust .slides width
		.css({
		 'float' : 'left',
		 'width' : slideWidth
	});

	// Set #slideInner width equal to total width of all slides
	 $('#slideInner').css('width', slideWidth * numberOfSlides);

	// Insert controls in the DOM
	$('#slideShow')
		.prepend('<span class="control" id="leftControl">sliding left</span>')
		.append('<span class="control" id="rightControl">sliding right</span>');

	// Hide left arrow control on first load
	 manageControls(currentPosition);

	 // Create event listeners for .controls clicks
	 $('.control')
		.bind('click', function(){
		// Determine new position
		currentPosition = ($(this).attr('id')=='rightControl') ? currentPosition+1 : currentPosition-1;
	
		// Hide / show controls
		manageControls(currentPosition);
		// Move slideInner using margin-left
		$('#slideInner').animate({
		 'marginLeft' : slideWidth*(-currentPosition)
		});
	 });

	 // manageControls: Hides and Shows controls depending on currentPosition
	function manageControls(position){
		// Hide left arrow if position is first slide
		if(position==0){ $('#leftControl').hide() } else{ $('#leftControl').show() }
		// Hide right arrow if position is last slide
		if(position==numberOfSlides-1){ $('#rightControl').hide() } else{ $('#rightControl').show() }
	}	
});