rem: broadcaster.setAttribute("disabled", "true"); if (locked) { broadcaster.setAttribute("disabled","true"); } 
add: signature.setAttribute("disabled", "true");  if (checked && !getAccountValueIsLocked(browse)) browse.removeAttribute("disabled"); else browse.setAttribute("disabled", "true"); 
context: function setupSignatureItems(){    var broadcaster = document.getElementById("broadcaster_attachSignature");   var attachSignature = document.getElementById("identity.attachSignature");   var checked = attachSignature.checked;   var locked = getAccountValueIsLocked(attachSignature);   if (checked)     broadcaster.removeAttribute("disabled");   else     broadcaster.setAttribute("disabled", "true");   if (locked) {     broadcaster.setAttribute("disabled","true");   }}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/4a79eeb566fc74f4cc7f7aa86c322fd0df44b81f/am-main.js/clean/mailnews/base/prefs/resources/content/am-main.js