// Add to favorites
function addToFavorites(idmaterial) {

	new Ajax.Request(site_url + 'materials/favorites/action/add/idmaterial/'+idmaterial, 
		{ 	method:'get',
			onSuccess: function(transport){
				$(idmaterial+'_added').innerHTML = '<img src="'+site_img+'check_true.gif">';
			},
			onFailure: function(){ }
		}
	);
}

// Delete from favorites
function deleteFromFavorites(idmaterial) {

	new Ajax.Request(site_url + 'materials/favorites/action/delete/idmaterial/'+idmaterial, 
		{ 	method:'get',
			onSuccess: function(transport){
				Effect.toggle(idmaterial+'_div', 'appear');
			},
			onFailure: function(){ }
		}
	);
}