Can you make the html textbox only accept a certain format?

Question

I have a Html textbox on my page, now I want it so you can only edit the values that are set on it.

Example:

Set value: 0:00 - 0:00 User can change it to: 8:30 - 9:30 or 11:30 - 12:35

I want to do it the correct way that the user can only insert this, not that I have to do a php check if he did edit the format.

Thanks in advance.

Answer 1

I think this is a plugin you're looking for:

http://digitalbush.com/projects/masked-input-plugin/

Where you can create masks to make a "custom" input format:

$("#startTime").mask("99:99 - 99:99",{placeholder:"0"});

jsFiddle