<!--
    function  chkCaptcha(_CF_this)
    {
		//check captcha
		hash_usr = (hex_md5(document.getElementById('captcha').value));
		hash_usr = hash_usr.toUpperCase();
		hash_sys = document.getElementById('captchaHash').value;

		if(hash_usr!=hash_sys) {
			alert('Please enter/verify code');
			document.getElementById('captcha').focus();
			return false;
		}
		else {
			return true;
		}
    }
//-->