//APERTURA DOCUMENTO
function apridoc(file)
{
	l = (screen.width - 700)/2;
	h = (screen.height - 500)/2;
	x=window.open('' + file ,'doc','width=700,height=550,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=YES,screenx=' + l + ', screeny=' + h +',top=' + h + ',left='+ l);
	x.focus();
}