// Powered by Sidwod.

function fnShow(id){
	
  if (document.getElementById(id).className=='subnumeros'){
                 document.getElementById(id).className = 'invisible';
  }
  else if (document.getElementById(id).className=='invisible'){
                 document.getElementById(id).className = 'subnumeros';
  }
}


function checkMail(x)
{
	if(x == '')
		return false;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x))
		return true;
	else 
		return false;
} 

function showId(id)
{	
    document.getElementById(id).style.visibility 	= "visible"; 
	document.getElementById(id).style.display		= 'block';
	document.getElementById(id).style.height 		= 'auto';
}

function hiddenId(id)
{	
	if (document.all)		
    {
		document.getElementById(id).style.display 		= 'none';	
	}
	else
    {
		document.getElementById(id).style.visibility 	= "hidden";	
	}
	document.getElementById(id).style.height 			= '0px';	
}

function requireLogin(module)
{ 
   alert('Debe iniciar sesión para acceder a esta opción'); 
	var newlink = 'index.php?module='+module;
	document.location.href=newlink;
}