HTML select option control when disabled is not submitted with the form

I have the following HTML code. I need to gray out this control depending on the selection in another client-side control. I do it like so using jQuery:

$('#dropDown1').attr('disabled', 'disabled');
 

The problem is that this control, if disabled, is not submitted with the form. Is there any way to overcome this?

Again, I need to somehow be able to prevent user from editing control in certain situations (not all the time) but still be able to submit it with the form.

<select name="dropDown1" id="dropDown1">
     <option value="1">1</option>
     <option value="2">2</option>
 </select>
 

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