Ajax success fanction not showing all messages
===

The below ajax success function is displaying only my last error4 msg. The responses I am checking are coming ok but the massage is not displaying.

    $.ajax({
    type:...
    url:...
    data:...
    success: function (exst_rsp){
    //if email is not register
    if(exst_rsp == "email_no"){
    exstInfo.text("error1");
    exstInfo.addClass("error");
    email_err = true;
    }
    else{
    exstInfo.text("");
    exstInfo.removeClass("error");
    email_err = false;
    }
    
    //if user has already submit a coupon
    if(exst_rsp == "played"){
    couponInfo.text("error2");
    couponInfo.addClass("error");
    email_pl_err = true;
    }
    else{
    couponInfo.text("");
    couponInfo.removeClass("error");
    email_pl_err = false;
    }

    //if email & pass don't match
    if(exst_rsp == "email_pass_no"){
    matchInfo.text("error3");
    matchInfo.addClass("error");
    pass_err = true;
    }
    else{
    matchInfo.text("");
    matchInfo.removeClass("error");
    pass_err = false;
    }
    
    //if captcha don't match
    if(exst_rsp == "wrong"){
    capthInfo.text("error4");
    capthInfo.addClass("error");
    captcha_err = true;
    }
    else{
    capthInfo.text("");
    capthInfo.removeClass("error");
    captcha_err = false;
    }
    
    if(exst_rsp == "ok"){
    exst_rsp_ok = false;
    $('#content').load('f.php');
    }
    else{
    exst_rsp_ok = true;
    }
    if(email_reg_err == true || email_pl_err == true || email_pass_err == true || captcha_err == true || exst_rsp_ok == true){
    		                  return false;
    }
    else {
    return true;
    }
    }
    })
