Is it possible to turn a field off and on based on a check box?

Question

I'm wondering if it is possible to write a javascript to turn off another field in a PDF form if a Check Box is checked? I'm not even close on this one below. I'm trying to figure out if someone checks check box cb144 then if will rendor another field 6a unfillable. If it's unchecked then it can be filled in. Is this possible? Thank you again if anyone has any ideas on how to code this one.

var theField = this.getField("cb144");
var theValue = theField.value;

if (theValue == "Resident") {
this.getField("6a").value= "";
}
else {
this.getField("6a").value= "";
}

PDF Automation Station · Accepted Answer

Part 17a4b is part of the other 2 choices.

if(this.getField("17a4a").value=="Yes" || this.getField("a17a4c").value=="Yes" || this.getField("a17a4b").value=="Yes")
{event.target.readonly=true}
else
{event.target.readonly=false}

ls_rbls · Answer

Hi @stepheng54012748 , @PDF Automation Station

I was also testing this as a Mouse Up event script executed from the checkbox widget:

(event.target.value !== "Off") ? this.getField("6a").readonly = true : this.getField("6a").readonly = false

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