window.addEvent('domready', function()
		{

			var paisesSelect = new Array();

			var continentesSelect = $('continentes').getElements('select');
			var paisesSelect = $('paises').getElements('select').set({'opacity': 0});
			var provinciasSelect = $('provincias').getElements('select').set({'opacity': 0});
			var paquetesSelect = $('paquetes').getElements('div[title=paquete]').set({'opacity': 0});
	
			
			var paises = paisesSelect;
			var provincias = provinciasSelect;
			var paquetes = paquetesSelect;
			
			$('paises').set({'opacity': 0});
			$('provincias').set({'opacity': 0});
			
			continentesSelect.addEvent('change',function()
					{	
						paises.set({'opacity': 0});
						provincias.set({'opacity': 0});
						paquetes.set({'opacity': 0});
						$('provincias').set({'opacity': 0});
						$('paises').set({'opacity': 0});
						
						var val = this.get('value');
						
						paises = paisesSelect.filter(function(item, i){
												return item.get('title') == val;
											});
						paises.set({'opacity':1});
						if(val != 'Continentes')
							$('paises').set({'opacity': 1});
					});
					
			paisesSelect.addEvent('change',function()
					{	
						provincias.set({'opacity': 0});
						paquetes.set({'opacity': 0});
						$('provincias').set({'opacity': 0});
						
						var val = this.get('value');
						
						provincias = provinciasSelect.filter(function(item, index){
												return item.get('title') == val;
											});
						provincias.set({'opacity': 1});
						if(val != 'Paises')
							$('provincias').set({'opacity': 1});
					
					});
					
			provinciasSelect.addEvent('change',function()
					{	
						paquetes.set({'opacity': 0});
						var val = this.get('value');
						/*
						paquetes = paquetesSelect.filter(function(item, index){
												return item.get('id') == val;
											});
						*/
						paquetes.set({'opacity': 1});
						$('paquetes').load('internacionalPaquetes.php?provincia='+val);
					});
		
		});