JS & Sharepoint Designer

[PixieLandGirl]

Long shot but is there anyone out there that could help with the below:

I have the following JS code which works if I do not make the field read-only, however I need AllUsers to have the LifecycleStage field read only.

I tried to use a calculated field instead but this did not work either. The calculated filed is PMOLifecycleStage.

Any ideas on how I can make it work?

// Initiate TAB
function setInitiateTab() { 
var v = fd.field('LifecycleStage').control().value(); 
if (v == '(2) Initiate') { 
$('#fd_tabcontrol-1').tabs('option', 'disabled', [2,3,4,5]); 
} else { 
$('#fd_tabcontrol-1').tabs('option', 'disabled', null); 
} 
} 

// Subscribe on status change 
fd.field('LifecycleStage').control().change(function () { 
setInitiateTab(); 
}); 

// Initialize 
setInitiateTab();