jQuery(document).ready(function() {
	
	var moreNewsOn = false
	jQuery('#open-more-news').click(function() {
		if (!moreNewsOn) {
			jQuery('#more-news').css('opacity', 0).slideDown().animate({opacity: 1});
			moreNewsOn = true;
		} else {
			jQuery('#more-news').animate({opacity: 0}).slideUp();
			moreNewsOn = false;
		}
		
	});
	
	
	/* Navegação Destaques */
	destaques = {
			inicio: 1,
			fim: 4,
			total: jQuery('.editions-item').size()
	}

	function destaques_navigate_forward() {
		if (destaques.fim < destaques.total) {
			destaques.inicio ++;
			destaques.fim ++;
			destaques_update()
		}
	}
	
	function destaques_navigate_backward() {
		if (destaques.inicio > 1) {
			destaques.inicio --;
			destaques.fim --;
			destaques_update()
		}
	}
	
	function destaques_update() {
		jQuery('.editions-item').hide();
		for (var i = destaques.inicio; i <= destaques.fim; i++) {
			jQuery('#edition-'+i).show();
		}
		jQuery('.editions-arrows').show();
		if (destaques.fim >= destaques.total) {
			jQuery('#editions-right').hide();
		}
		if (destaques.inicio == 1) {
			jQuery('#editions-left').hide();
		}
	}
	
	jQuery('#editions-right').click(function() {
		destaques_navigate_forward();
	});
	
	jQuery('#editions-left').click(function() {
		destaques_navigate_backward();
	});
	
	destaques_update();
	
	
	/*** navegação Jornal dos Jornais ***/
	
	var jornal = {
			inicio: 1,
			fim: 3,
			total: jQuery('#newspapers .newspaper').size()
	};
	
	function jornal_navigate_forward() {
		if (jornal.fim < jornal.total) {
			jornal.inicio ++;
			jornal.fim ++;
			jornal_update()
		}
	}
	
	function jornal_navigate_backward() {
		if (jornal.inicio > 1) {
			jornal.inicio --;
			jornal.fim --;
			jornal_update()
		}
	}
	
	function jornal_update() {
		jQuery('#newspapers .newspaper').hide();
		for (var i = jornal.inicio; i <= jornal.fim; i++) {
			jQuery('#newspaper-'+i).show();
		}
		
		jQuery('#newspaper-nav-up').css('background-image', 'url(' + home.baseurl + '/images/btn-up.gif)').css('cursor', 'pointer');
		jQuery('#newspaper-nav-down').css('background-image', 'url(' + home.baseurl + '/images/btn-down.gif)').css('cursor', 'pointer');
		
		if (jornal.fim >= jornal.total) {
			jQuery('#newspaper-nav-down').css('background-image', 'url(' + home.baseurl + '/images/btn-down-inactive.gif)').css('cursor', 'default');
		}
		if (jornal.inicio == 1) {
			jQuery('#newspaper-nav-up').css('background-image', 'url(' + home.baseurl + '/images/btn-up-inactive.gif)').css('cursor', 'default');
		}
	}
	
	jQuery('#newspaper-nav-down').click(function() {
		jornal_navigate_forward();
	});
	
	jQuery('#newspaper-nav-up').click(function() {
		jornal_navigate_backward();
	});
	
	jornal_update();
	
	

});