rem: var status = message.getAttribute('Status'); return(status == ' ' || status == 'New'); 
add: var isUnread = message.getAttribute('IsUnread'); return(isUnread == 'true'); 
context: function GoUnreadMessage(message){	var status = message.getAttribute('Status');	return(status == ' ' || status == 'New');}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/eb30692c89dfbf7026937f4e31212c3aea58d3b9/msgViewNavigation.js/buggy/mailnews/base/resources/content/msgViewNavigation.js