ok so i want to do something with a checkbox and a text field... i want the text field to be enabled if the checkbox is checked and the field to be disabled when unchecked. So i know i need to use on change and i couldent really find anything close to what i am needed.

Use jQuery, the following Google seraches should render what you need (I found useful info in the first link of each)
jquery checkbox onclick
jquery disable checkbox

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