Question

I don’t know why I am struggling with this. Should I be taking a different approach?
I have a form being generated in vb based off a database and then I am trying simply to make a text-box be disabled unless you check a checkbox.

Here is what I have so far. It needs to be dynamic (what I have commented out).

I can’t seem to get it to work. The difficult part is referencing

document.form1.el.id.toString() + "_other".disabled

Answer 1

If I understand you correct, this should work for you:

function enable_text(el) {
    var textbox_name = el.id.toString() + "_other";
    document.getElementById(textbox_name).disabled = 
       (el.checked) ? "" : "disabled"; 
}​ 

A working example: http://jsfiddle.net/ve9Gz/3/