function Ventana(URL,Nombre,Ancho,Alto,Top,Left)
{
msgWindow=window.open(URL,Nombre,'toolbar= 0,location= 0,directories= 0,status= 0,menubar= 0,scrollbars= 1,resizable= 1,copyhistory= 0,WIDTH=' + Ancho + ',height=' + Alto + ',top=' + Top +',left=' + Left);
}


function textCounter(field, countfield, maxlimit) 
{
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else 
countfield.value = maxlimit - field.value.length;
}

//Analitycs
  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-4875821-22']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();