// JavaScript Document
window.addEvent('domready', function() {
	var cartoline =  Array(
		'cartoline/cartolina1.JPG',
		'cartoline/cartolina2.JPG',
		'cartoline/cartolina3.JPG',
		'cartoline/cartolina4.JPG',
		'cartoline/cartolina5.JPG',
		'cartoline/cartolina6.JPG',
		'cartoline/cartolina7.JPG',
		'cartoline/cartolina8.JPG',
		'cartoline/cartolina9.JPG',
		'cartoline/cartolina10.JPG',
		'cartoline/cartolina11.JPG',
		'cartoline/cartolina12.JPG',
		'cartoline/cartolina13.JPG',
		'cartoline/cartolina14.JPG'
	);
	
	
	var cartolina_x = Math.floor(Math.random()*cartoline.length);
	img = cartoline[cartolina_x];
		$('cartolina-link').setProperty('value',img);
		$('cartolina').setStyle('background','url(\'image.php?image=/images/'+img+'&width=330&rotate=1.0&height=230&cropratio=33:23\') 1px 32px  no-repeat');
		
	$('cartolina-prev').addEvent('click',function(){
		if (cartolina_x == 0)
			cartolina_x = cartoline.length-1;
		else
			cartolina_x--;
			
		img = cartoline[cartolina_x];
		$('cartolina-link').setProperty('value',img);
		$('cartolina').setStyle('background','url(\'image.php?image=/images/'+img+'&width=330&rotate=1.0&height=230&cropratio=33:23\') 1px 32px  no-repeat');
	});
	
	$('cartolina-next').addEvent('click',function(){
		if (cartolina_x == cartoline.length-1)
			cartolina_x = 0;
		else
			cartolina_x++;
			
		img = cartoline[cartolina_x];
		$('cartolina-link').setProperty('value',img);
		$('cartolina').setStyle('background','url(\'image.php?image=/images/'+img+'&width=330&rotate=1.0&height=230&cropratio=33:23\') 1px 32px  no-repeat');
	});
},'javascript');