var blocknum_curr_value = <% $opt{'blocknum'} |js_string %>;
function update_ip_addr() {
- var routernum = $('#router_select_0').val();
- var blocknum = $('#router_select_1').val();
+ var routernum = $('#router_select_0').val() || "";
+ var blocknum = $('#router_select_1').val() || "";
var e_input_ip_addr = $('#input_ip_addr');
var e_router_select_1 = $('#router_select_1');