diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-add.tmpl b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-add.tmpl
index 83f44921b3..60e09d7e1e 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-add.tmpl
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/subscription-add.tmpl
@@ -628,7 +628,7 @@ function irregularity_check(){
             errortext +=expected+_(" issues expected, ")+rollover+_(" were entered. <br \/>Please indicate which date(s) an issue is not expected<br \/>");
             irregular_issues.numskipped = expected - rollover;
 		}
-        errortext +="<select multiple id='irregularity_select' name='irregularity_select' onchange='irregular_issues.update();'>\n"; 
+        errortext +="<select multiple id='irregularity_select' name='irregularity_select' onchange='irregular_issues.update();'>\n";
 		errortext +=irregular_options(periodicity);
 		errortext += "<\/select>\n <textarea rows='6' width='18' id='irregularity_summary' name='irregularity_summary' value='foo' />";
         error=errortext;
@@ -649,6 +649,7 @@ function irregular_options(periodicity){
     var titles;
     var count;
     var errortext='';
+    var numberpattern = document.getElementById('numberpattern').value;
     if(periodicity == 1) {
         expected = 7;
         titles = irregular_issues.daynames;