// FORMATA FONE

 function fmtTel(campo, e)
 {
     myVal = campo.value;

     if (myVal.length > 4 && !myVal.match(/\-/))
     {
        myVal = '';
    }
     else
     {
         if (window.event)
         {
            keycode = window.event.keyCode;
         }
         else if (e)
         {
             keycode = e.which;
         }

        if (keycode < 48 || keycode > 57)
         {
             myVal = myVal.replace(".", "");
             myVal = myVal.replace("+", "");
             myVal = myVal.replace("/", "");
             myVal = myVal.replace("*", "");
         }

         if (myVal.length == 4)
         {
             myVal += '-';
         }
     }

     campo.value = myVal;
 }
 /*****************************************************************************************************/