Index: openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl,v
diff -u -r1.21.2.4 -r1.21.2.5
--- openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl	17 Oct 2005 12:46:33 -0000	1.21.2.4
+++ openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl	4 Feb 2006 17:42:20 -0000	1.21.2.5
@@ -226,8 +226,11 @@
                 if { [string equal $mime_type "image/jpeg"] } {
                     catch { set what_aolserver_told_us [ns_jpegsize $tmp_filename] }
                 } elseif { [string equal $mime_type "image/gif"] } {
-                    catch { set what_aolserver_told_us [ns_gifsize $tmp_filename] }
-                } else {
+                    catch { set what_aolserver_told_us [sn_gifsize $tmp_filename] }
+                } elseif { [string equal $mime_type "image/png"] } { 
+		    # we don't have built in png size detection
+		    # but we want to allow upload of png images
+		} else {
                     ad_return -code error "Unknown image type"
                 }