Index: jsmath/web/extensions/mathchoice.js
===================================================================
RCS file: /usr/local/cvsroot/jsmath/web/extensions/mathchoice.js,v
diff -u -r1.1 -r1.2
--- jsmath/web/extensions/mathchoice.js	11 Sep 2006 05:42:06 -0000	1.1
+++ jsmath/web/extensions/mathchoice.js	22 Jun 2007 07:31:21 -0000	1.2
@@ -34,7 +34,8 @@
    */
   choice: function (style,mitem,i,mlist) {
     if (style.charAt(style.length-1) == "'") {style = style.slice(0,style.length-1)}
-    var nlist = []; var M = mitem[style]; if (!M) {M = {type: 'mlist', mlist: []}}
+    var nlist = []; var M = mitem[style];
+    if (!M) {M = {type: 'mlist', mlist: {mlist: []}}}
     if (M.type == 'mlist') {
       M = M.mlist.mlist;
       for (var k = 0; k < i; k++) {nlist[k] = mlist[k]}