add: if (gLockedPref["nntp.keepMsg"]) {    return; } 
context: function onCheckKeepMsg(){    var broadcaster_keepMsg = document.getElementById("bc_keepMsg");    var checkedOld = document.getElementById("nntp.keepOldMsg").checked;    var checkedNew = document.getElementById("nntp.keepNewMsg").checked;    var checkedAll = document.getElementById("nntp.keepAllMsg").checked;    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: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/858b384ca68f5f05adf477a51b7ec2a95bd58729/am-offline.js/clean/mailnews/base/prefs/resources/content/am-offline.js