function generaCaptchaCorto()
{
	var url = miurl + 'ajax/newcaptchacorto';

	new Ajax.Request( url ,
		{
			method: 'post',
			encoding: 'utf-8',

			parameters: {},

			onSuccess: function(transport)
			{
				var response = transport.responseText;
				if (response)
				{
						$('captchaimage').innerHTML = response;
				}
			}
		}
	);
}

function generaCaptchaLargo()
{

	var url = miurl + 'ajax/newcaptchalargo';

	new Ajax.Request( url ,
		{
			method: 'post',
			encoding: 'utf-8',

			parameters: {},

			onSuccess: function(transport)
			{
				var response = transport.responseText;
				if (response)
				{
						$('captchaimage').innerHTML = response;
				}
			}
		}
	);
}