如果两个值都有效，如何避免表单提交?

Hi Below is the code that i am using for my form to validate id's entered in two input fields.All code is working fine.Only thing is that how to stop form from submitting if both the fields are not valid as i am disabling and enabling submit button if record return is true.but if any one field is valid then submit button is enabling and allowing user to submit form.Hi Below is the code that i am using for my for