function items(id){
	var obj = document.getElementById('box' + id)
	if(obj.style.display == 'block') obj.style.display = 'none'
	else obj.style.display = 'block'
}


function tabs(id){
	var obj = document.getElementById('tab' + id)
	if(obj.className == 'tab') obj.className = 'tabopen'
	else obj.className = 'tab'
}


function ocultaItems(){
	listado = document.getElementById('contenedor')
	contenedores = listado.getElementsByTagName('div')
	numContenedores = contenedores.length
	for(m=0; m < numContenedores; m++){
		if(contenedores[m].id.indexOf('box') == 0)
			contenedores[m].style.display = 'none'
	}
}