function refreshCaptcha(componentId, captchaPath)
{
	if(!captchaPath) captchaPath = 'index.php?option=com_rsform&task=captcha&componentId=' + componentId;
	document.getElementById('captcha' + componentId).src = captchaPath + '&' + Math.random();
	document.getElementById('captchaTxt' + componentId).value='';
	document.getElementById('captchaTxt' + componentId).focus();
}

function number_format(number, decimals, dec_point, thousands_sep)
{
    var n = number, prec = decimals;
    n = !isFinite(+n) ? 0 : +n;
    prec = !isFinite(+prec) ? 0 : Math.abs(prec);
    var sep = (typeof thousands_sep == "undefined") ? ',' : thousands_sep;
    var dec = (typeof dec_point == "undefined") ? '.' : dec_point;
 
    var s = (prec > 0) ? n.toFixed(prec) : Math.round(n).toFixed(prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
 
    var abs = Math.abs(n).toFixed(prec);
    var _, i;
 
    if (abs >= 1000) {
        _ = abs.split(/\D/);
        i = _[0].length % 3 || 3;
 
        _[0] = s.slice(0,i + (n < 0)) +
              _[0].slice(i).replace(/(\d{3})/g, sep+'$1');
 
        s = _.join(dec);
    } else {
        s = s.replace('.', dec);
    }
 
    return s;
}