how to calculate total in javascript with buttons

Question

Hi folks,

i had one html form to calculate total marks of 3 questions.this form can be seen in attached file.

for every question,we will have two buttons for 0 and 2.
and underneath one text field to display total.

initially, i have pressed 2 button for all questions and total 6 was displayed in total text box.

Task:if i want to give 0 marks to first question.then it will show 4 marks in total text box.but it is adding 0 marks to total 6 marks.
Please let me how to fix it.

Thanks in advance.....

Thanks
Ravi Gaddam

Jaganathan Bantheswaran · Answer

Hi, Here is the live example.

Ravi Gaddam · Answer

Hi Jaganathan Bantheswaran , Thanks a lot first, absolutely correct..

Jaganathan Bantheswaran · Answer

Updated the fiddle. Please check once again & let me know, if i understood your question.

Ravi Gaddam · Answer

Hi Jaganathan Bantheswaran , Thanks a lot for your reply. In this fiddle, value will not be greater than 6 means if we click 2 button next time which is allowing twice and thrice...but it should not allow for second time. eventually,value should not exceeds greater than 6 even if click again and agian.you can check it by clicking 2 buttons again and again. Thanks Ravi Gaddam

Anubhav Chaudhary · Answer

Hey Jagnathan, I havn't answered this question so I had no right to question your reply but Bro your Fiddle is not working properly, if I select 0, 2, 0 then the Result is shown as 0 but result should be 2, actually selecting 0 is deducting 2 from the result which was not asked. So, I think you should update your code