function setCaptcha(request)
{
	var hr = request.responseText.replace(/^\s+|\s+$/g,"");
	document.contact_left.captchaHash.value = hr;
	document.getElementById("captchaImage").src = "/showCaptcha.cfm?hashReference=" + hr;
}
	
function setFailed()
{
	return;
}
	
function initCaptcha()
{
	var url = '/generateHash.cfm';
	var params = '';
	var ajax = new Ajax.Request
		(
			url,
			{method: 'get',
				parameters: params,
				onSuccess: setCaptcha,
				onFailure: setFailed
				
			}
		);
}