function Confirmar()
{
var respuesta;
respuesta = confirm("Desea Anular Orden(es)?")
if (respuesta)
	{
	return (true)
	}
return (false)
}
//-----------------------------------------------------
function Check()
{
var TotMarcar,form
form = document.Ordenes
TotMarcar = form.Marcar.length 
if (isNaN(TotMarcar)==false)
	{
	return Todos()
	}
else
   {
   	return Uno()
   }	
}				
//-----------------------------------------------------
function Todos()
{
var TotMarcar,form
form = document.Ordenes
TotMarcar = form.Marcar.length 
for(i=0; i < TotMarcar; i++) 
		if (form.Marcar[i].checked)
			{
			return (true)
			break
		 	}
return (false)	
}				
//----------------------------------------------------------
function Uno()
{
var TotMarcar,form
form = document.Ordenes
if (form.Marcar.checked)
		{
		return (true)
		}
else
	{		
return (false)	
	}
}