rem: var args = {dspname: displayName, opval: 0};  window.openDialog("chrome: "openSaveAttachment", "chrome,modal", args); if (args.opval == 1) messenger.openAttachment(contentType, url, displayName, messageUri); else if (args.opval == 2) messenger.saveAttachment(url, displayName, messageUri); 
add: messenger.openAttachment(contentType, url, displayName, messageUri); 
context: function OpenAttachURL(contentType, url, displayName, messageUri){    var args = {dspname: displayName, opval: 0};  window.openDialog("chrome://messenger/content/openSaveAttachment.xul",                    "openSaveAttachment", "chrome,modal", args);  if (args.opval == 1)      messenger.openAttachment(contentType, url, displayName, messageUri);  else if (args.opval == 2)      messenger.saveAttachment(url, displayName, messageUri);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/44b7071761715e507ed6c172e6477a36e70e537d/msgHdrViewOverlay.js/buggy/mailnews/base/resources/content/msgHdrViewOverlay.js