In this post I have explained how to select box hide concept like e-commerce website just choose an checkbox value change as select box value using java script coding and select box value disabled concept this post most help to classified and e-commerce website developers try this simple script take a look this live demo.
Select box and check box name call the function on getElementById(day) select box to change loop value (to+"["+day+"]").value = 'Closed';
Click check box closed the select box value and disabled select box just call in disabled="disabled" coding watch below coding
Display hours of operation Do not display hours of operation
Monday : To Closed