added selector access sanity check

git-svn-id: svn://svn.open-ils.org/ILS/trunk@5662 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/web/opac/common/js/utils.js b/Open-ILS/web/opac/common/js/utils.js
index 7f1976f..6f8fb3b 100644 (file)
--- a/Open-ILS/web/opac/common/js/utils.js
+++ b/Open-ILS/web/opac/common/js/utils.js
@@ -199,6 +199,7 @@ function setSelectorRegex( sel, regex ) {
 
 function getSelectorVal( sel ) {
        if(!sel) return null;
+       if( sel.selectedIndex < 0 ) return null;
        var o = sel.options[sel.selectedIndex];
        var v = o.value; 
        if(v == null) v = o.innerHTML;