fixed an issue I introduced this morning where the id wouldn't get up…

…dated.

manifest.json

@@ -1,6 +1,6 @@
 {
   "name": "NumTabs",
-  "version": "0.2",
+  "version": "0.4",
   "description": "Adds position numbers to the titles of tabs.",
   "background_page": "numtab.html",
   "icons": {

numtab.js

@@ -7,8 +7,8 @@
 			var title = document.title;
 			if(id !== old_id){
 				var len = 0;
-				if(old_id){
-					len = old_id.toString().length
+				if(old_id && /\d\s/g.test(title)){
+					len = 2;
 				}
 				title = id + " " + title.substr(len);
 				//console.log(title);
@@ -17,4 +17,4 @@
 			}
 		}, 100);
 	}
-})()
+})();