function splash (pagina, w, h)
{
	var windowX = Math.ceil( (window.screen.width  - w) / 2 );
	var windowY = Math.ceil( (window.screen.height - h) / 2 );
	s = ",width="+ w +",height="+ h ;
	var sw=window.open ("","","fullscreen=1,resizable=no, toolbar=no, scrollbars=no, directories=no,menubar=no,status=no,location=no," + s);
	sw.resizeTo( Math.ceil( w )       , Math.ceil( h ) );
	sw.moveTo  ( Math.ceil( windowX ) , Math.ceil( windowY ) );
	sw.window.location.href = (pagina)
	sw.focus();
}

function ven(pagina, w, h)
{ 
	var windowX = Math.ceil( (window.screen.width  - w) / 2 );
	var windowY = Math.ceil( (window.screen.height - h) / 2 );
	t = ",width="+ w +",height="+ h ;
	var ventana=window.open("","","resizable=no, toolbar=no,directories=no,menubar=no,status=no,location=no, scrollbars=yes," + t);
	ventana.moveTo  ( Math.ceil( windowX ) , Math.ceil( windowY ) );
	ventana.window.location.href = (pagina)
}

function form (pagina)
{
	var ab=window.open (pagina,"Costo","resizable=no, toolbar=no, scrollbars=yes, directories=no,menubar=no,status=no,location=no,width=467, height=350");
}