Index: openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl,v
diff -u -r1.21 -r1.22
--- openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl	3 Nov 2006 14:39:02 -0000	1.21
+++ openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl	21 Feb 2007 16:34:26 -0000	1.22
@@ -57,10 +57,13 @@
         } else {
             foreach elseNode $elseNodes {
                 #an else node may contain an expression or another if_then_else
-                if { [string eq [ [$elseNode selectNodes {*[position()=1] } ] localName] "if" ] } {
-                    imsld::condition::execute -run_id $run_id -condition $elseNode -user_id $user_id
-                } else {
-                    imsld::statement::execute -run_id $run_id -statement [$elseNode childNodes] -user_id $user_id
+
+                if {[$elseNode hasChildNodes]} {
+                    if { [string eq [ [$elseNode selectNodes {*[position()=1] } ] localName] "if" ] } {
+                        imsld::condition::execute -run_id $run_id -condition $elseNode -user_id $user_id
+                    } else {
+                        imsld::statement::execute -run_id $run_id -statement [$elseNode childNodes] -user_id $user_id
+                    }
                 }
             }
         }