function reload()
{
	document.getElementById('imgcaptcha').src ='index.php?module=Captcha&func=captcha';
}

function verificar(captcha)
{
	var url='index.php?module=Captcha&func=verificar&num='+captcha;
	var success	= function(t){validarOk(t);}
	var failure	= function(t){failed(t);}	
	var myAjax = new Ajax.Request(url, {method:'post', onSuccess:success, onFailure:failure});	
}

function validarOk(t)
{
	if(t.responseText==1)
	{	
		return;
	}
	else
	{
		alert(ERROR1);
		reload();
		document.getElementById('captcha').value='';
	}
}

function falied()
{
	return;
}