// contador de caracteres
function textCounter(field,cntfield,maxlimit) {
if (field.value.length > maxlimit)
  field.value = field.value.substring(0, maxlimit);
else
  cntfield.value = maxlimit - field.value.length;
}
// conversor de maiusculas
function Upper(e,r)
{
  r.value = r.value.toUpperCase();
}
function checkIt(evt) {
    evt = (evt) ? evt : window.event
    var charCode = (evt.which) ? evt.which : evt.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57)) {
        status = "Este campo aceita somente numeros."
        return false
    }
    status = ""
    return true
}