function cambiaDisplay(idString) {
	var objs = idString.split("|");
	for (i=0; i<objs.length;i++) {
		if ( document.getElementById(objs[i])) {
			obj = document.getElementById(objs[i]);
			if (obj.style.display!='none' ) obj.style.display = 'none';
  			else obj.style.display = 'block';
		}
	}
}