function kadabra(zap){
			
			if(zap=="none"){
			  var abra = document.getElementById("submenu").style;
	  		if(abra.display=="block"){
	    	  abra.display="none";
					
	  		}
				return false;
			}
			
  if(document.getElementById){
	  var abra = document.getElementById(zap).style;
	  if(abra.display=="block"){
	    abra.display="none";
	  }else{
	    abra.display="block";
	  }
		
		return false;
		
	}else{
	  return true;
  }
}