rem: treeCell.setAttribute('src', "moz-icon:" + " 
add: listitem.setAttribute('image', "moz-icon:" + " 
context: function setApplicationIconForAttachment(attachment, treeCell){   // generate a moz-icon url for the attachment so we'll show a nice icon next to it.   treeCell.setAttribute('src', "moz-icon:" + "//" + attachment.displayName + "?size=16&contentType=" + attachment.contentType);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/msgHdrViewOverlay.js/clean/mailnews/base/resources/content/msgHdrViewOverlay.js