fixes another IE weirdnes when handling list items

Ignore-this: d5a0f9671af3607796332a1afcc8de79

Fixes a problem where list mode couldn't easily be left by removing a bullet.
Hitting enter would readd a bullet always.

note: development was part of the ICKE 2.0 project see
      http://www.icke-projekt.de for info

darcs-hash:20090805123523-6e07b-46570b10a1422d04ad3c7251323568c712037864.gz

lib/scripts/edit.js

@@ -196,19 +196,19 @@ function addBtnActionAutohead(btn, props, edid, id)
  *
  * @author Andreas Gohr <andi@splitbrain.org>
  * @fixme handle tabs
- * @fixme IE compatibility not tested yet
  */
 function keyHandler(e){
     if(e.keyCode != 13 &&
        e.keyCode != 8  &&
-       e.keyCode != 32) return; //FIXME IE
+       e.keyCode != 32) return;
     var field     = e.target;
     var selection = getSelection(field);
     var search    = "\n"+field.value.substr(0,selection.start);
-    var linestart = search.lastIndexOf("\n");
+    var linestart = Math.max(search.lastIndexOf("\n"),
+                             search.lastIndexOf("\r")); //IE workaround
     search = search.substr(linestart);
 
-    if(e.keyCode == 13){ // Enter //FIXME IE
+    if(e.keyCode == 13){ // Enter
         // keep current indention for lists and code
         var match = search.match(/(\n  +([\*-] ?)?)/);
         if(match){