try to fool browser caching of overlay images

diff --git a/therapies/page.sh b/therapies/page.sh
index 974ad8a0365c7f193384c9aee104065ef57e5549..571f9bb360054d8c9c3c05498ed11387ab5f9762 100755 (executable)
--- a/therapies/page.sh
+++ b/therapies/page.sh
@@ -60,7 +60,7 @@ therapy_sessions(){
          [span .signature [checkbox "${sid}_sigset" "pos" $(checked "$(TPY "${sid}_sigset")" "pos")]]
        ]
        [div .tab
-         [img .dotmark .ov src="/therapies/${id}_${sid}.png" alt=""]
+         [img .dotmark .ov src="/therapies/${id}_${sid}.png?${_DATE}" alt=""]
          $(n=1; while TPY "session${session_n}_note${n}" >/dev/null; do
              [ "$(TPY "session${session_n}_note${n}")" ] && x=$n
              n=$(($n + 1))