Style to look pro

Hello, i want to apply some styles to my input fields of my form. I have two questions for this:

this is my first question. I have already applied the disabled grey-look-like to one field and i would like to remove the disable when the field is clicked, this is the code that i have but for some reason it is not working


and the second question is how can i clear the "None" value at the same time the "disabled" is removed?

Your code isnt working because you are assigning an event to a disabled object. Instead of that on this code i use a wrapper to get the click from the user.