function playCaptcha(captchaField)
{
   var wavURL    = '/includes/captcha/audio/captcha.php';
   var embedCode = '<EMBED SRC="' + wavURL + '" HIDDEN="true" AUTOSTART="true" />';

   document.getElementById("audioCaptcha").innerHTML = ""; 
   document.getElementById("audioCaptcha").innerHTML = embedCode; 

   document.getElementById(captchaField).value="";
   document.getElementById(captchaField).focus();
}

function reloadCaptcha(captchaImg)
{
   var imgURL = '/includes/captcha/validationImage.php?id='+ new Date().getTime();
   document.getElementById(captchaImg).src = imgURL;
}