rem: broadcaster_keepMsg.setAttribute("disabled", "true"); 
add: document.getElementById("nntp.keepNewMsgMin").setAttribute("disabled", "true"); document.getElementById("nntp.keepOldMsgMin").setAttribute("disabled", "true"); 
context: function onCheckKeepMsg(){    if (gLockedPref["nntp.keepMsg"]) {        // if the pref associated with the radiobutton is locked, as indicated        // by the gLockedPref, skip this function.  All elements in this        // radiogroup have been locked by the function onLockPreference.        return;    }    var broadcaster_keepMsg = document.getElementById("bc_keepMsg");    var checkedOld = document.getElementById("nntp.keepOldMsg").selected;    var checkedNew = document.getElementById("nntp.keepNewMsg").selected;    var checkedAll = document.getElementById("nntp.keepAllMsg").selected;    if(checkedAll) {        broadcaster_keepMsg.setAttribute("disabled", "true");    }    else if(checkedOld) {        document.getElementById("nntp.keepOldMsgMin").removeAttribute("disabled");        document.getElementById("nntp.keepNewMsgMin").setAttribute("disabled", "true");    }    else if(checkedNew) {        document.getElementById("nntp.keepNewMsgMin").removeAttribute("disabled");        document.getElementById("nntp.keepOldMsgMin").setAttribute("disabled", "true");    }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/127f838241e9ef816f1128000c169de685b31f83/am-offline.js/clean/mailnews/base/prefs/resources/content/am-offline.js