diff --git a/dhcpd/edit_group.cgi b/dhcpd/edit_group.cgi
index 115fcf0b6..ad9316f70 100755
--- a/dhcpd/edit_group.cgi
+++ b/dhcpd/edit_group.cgi
@@ -217,10 +217,10 @@ return <<EOF
 <script>
 function setparent(sel)
 {
-var idx = document.forms[0].assign.selectedIndex;
-var v = document.forms[0].assign.options[idx].value;
+var idx = document.getElementsByName("assign")[0].selectedIndex;
+var v = document.getElementsByName("assign")[0].options[idx].value;
 var vv = v.split(";");
-var parent = document.forms[0].parent;
+var parent = document.getElementsByName("parent")[0];
 parent.length = 0;
 
 if (v==1) {
diff --git a/dhcpd/edit_host.cgi b/dhcpd/edit_host.cgi
index a0355b5d7..565b84656 100755
--- a/dhcpd/edit_host.cgi
+++ b/dhcpd/edit_host.cgi
@@ -291,10 +291,10 @@ return <<EOF
 <script type='text/javascript'>
 function setparent(sel)
 {
-var idx = document.forms[0].assign.selectedIndex;
-var v = document.forms[0].assign.options[idx].value;
+var idx = document.getElementsByName("assign")[0].selectedIndex;
+var v = document.getElementsByName("assign")[0].options[idx].value;
 var vv = v.split(";");
-var parent = document.forms[0].parent;
+var parent = document.getElementsByName("parent")[0];
 parent.length = 0;
 
 if (v==1) {