var slideshow_info = {};
var current = 1;
var count = 0;
var info = {};
var to;
window.addEvent('domready', function() { 
	setup_slideshow();
});


function setup_slideshow() {
	for(var i in slideshow_info) {
		count++;
		info[count] = slideshow_info[i];
	}

	$('next').addEvent('click', function() {
		next();
	});
	
	$('previous').addEvent('click', function() {
		previous();
	});
	
	to = setTimeout('next();', 6000);
}

function next() {
    if (to) {
        clearTimeout(to);
    }
	if(current == count) {
		current = 1;
	}
	else {
		current++;
	}
	change_slide();
	to = setTimeout('next();', 6000);
}

function previous() {
	if(current == 1) {
		current = count;
	}
	else {
		current--;
	}
	change_slide();
}

function change_slide() {
	$('slideshow_img').setProperty('src', info[current]['src']);
	$('slideshow_link').setProperty('href', info[current]['link']);
	$('slideshow_image_link').setProperty('href', info[current]['link']);
	$('slideshow_link').set('text', info[current]['text']);
}