var banZoom = null

function creceLetra()
{
var zoom_obj = banZoom
var _tma = parseInt(zoom_obj.style.fontSize)
//window.status = zoom_obj.style.fontSize;
if (_tma < zoom_obj.maxTam)
    {
    zoom_obj.style.fontSize = _tma + 1
   setTimeout("creceLetra('"+zoom_obj.maxTam+"')",20)
   //alert('');
    }
else
	return false;
}

function resetear(mn, mx, rapidez, idBan)
{
if (banZoom == null)
    {
    banZoom = document.getElementById(idBan)
    banZoom.maxTam = mx
    banZoom.minTam = mn
    banZoom.rapidez = rapidez
    }
banZoom.style.fontSize = banZoom.minTam;
setTimeout("creceLetra()",rapidez);
}