/* 
Requires css/front/wrap/casestudy_slideshow.css
Modified to use jquery
*/
jQuery(function() {
   initSlides();
});


function showSlide(n) {
	document.getElementById('slide_' + currentSlide).style.display = "none";
	document.getElementById('slide_' + n).style.display = "block";
	document.getElementById('link_' + currentSlide).className = "";
	document.getElementById('link_' + n).className = "current";
	currentSlide = n;
}
function showPrevious() {
	var newSlide = currentSlide - 1;
	if (newSlide == 0) newSlide = numSlides;
	showSlide(newSlide);
	return false;
}
function showNext() {
	var newSlide = currentSlide + 1;
	if (newSlide == numSlides + 1) newSlide = 1;
	showSlide(newSlide);
	return false;
}
function showLinked() {
	var newSlide = parseInt(this.id.split('_')[1]);
	showSlide(newSlide);
	return false;
}
function initSlides() {
	if(document.getElementById('slide_nav') != null){
		document.getElementById('slide_nav').style.display = "block";
		currentSlide = 1;
		numSlides = jQuery('#slideshow .slide_container').length; 
		document.getElementById('link_prev').onclick = showPrevious;
		document.getElementById('link_next').onclick = showNext;
		for (var i = 1; i <= numSlides; i++) {
			document.getElementById('link_' + i).onclick = showLinked;
		}
	}
}