viejo="*";
      function toggle(nr) {
         if(document.layers) {
            if(document.layers[nr].display == 'block') {
               document.layers[nr].display = 'none';
            } else {
               document.layers[nr].display = 'block';
			   if(viejo!="*"){
			   document.layers[viejo].display = 'none'
			   }
            }

         } else if(document.all) {
            if(document.all[nr].style.display == 'block') {
               document.all[nr].style.display = 'none';
            } else {
               document.all[nr].style.display = 'block';
			   if(viejo!="*"){
			   document.all[viejo].style.display = 'none'
			   }
            }
         } else if(document.getElementById) {
            if(document.getElementById(nr).style.display == 'block') {
               document.getElementById(nr).style.display = 'none';
            } else {
               document.getElementById(nr).style.display = 'block';
			   if(viejo!="*"){
			   document.getElementById(viejo).style.display = 'none'
			   }
            }
         }
      viejo=(viejo!=nr)?nr:"*";
	  }
	  
	  function cambiar(esto){
	  c=document.getElementsByTagName("div");
	  for(a=0;a<c.length;a++){
	  if(c[a].className=="r-plegable"){
	  c[a].style.display=esto;
	  }
	  }
	  viejo="*";
	  }