var minute;
var seconde;

refresh_captcha();
setInterval(refresh_compteur, 1000);

function refresh_captcha() {
                var captchaId='';
                minute=4;
                seconde=60;
		
                  jQuery.ajax({
                        url: 'https://www.nemystic.net/securimage/mi_get_HTML_content.php?langue=fr&index=0&num_car_min=5&num_car_max=7&captcha_type=STRING&image_width=275&image_height=100&image_bg_color=000000&text_color=ffffff&line_color=dddddd&noise_color=eeeeee&noise_level=5&perturbation=0.5',
                        type: 'GET',
                        dataType: 'json',
                        success : function(code_json, textStatus, jqXHR){
					console.log(textStatus + ': ' + jqXHR.status);
                                     	var html=code_json['html'];
                                     	$('#captcha_content').html(html);
					

                        },
			error: function(jqXHR, textStatus, errorThrown) {
				var myStr= jqXHR.responseJSON;
				var errMess='Erreur JavaScript HTTP ' + jqXHR.status + ' ==> Code : ' + myStr['error']['code'] + ' ==> Message : ' + myStr['error']['message'];
				console.log(errMess);
				alert(errMess);
                        }

                  });
		 

                return false;
}

function refresh_compteur() {

                if(seconde >1) {
                        seconde -= 1;
                } else {
                        if(minute > 0) {
                                seconde=59;
                                minute -= 1;
                        } else {
                                refresh_captcha();
                                $('#compteur').html('--:--');
                                return false;
                        }

                }
                html=twoDigit(minute) + ':' + twoDigit(seconde);
                $('#compteur').html(html);
                return false;

}

function twoDigit(n) {
                 return (n < 10 ? '0' : '') + n
}