change text render js

I have this code in file StudentClasses.aspx:
<uc1:GroupPick ID="grpPicker" EnableViewState="true" runat="server" />

And this code in file GroupPick.ascx:

<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="GroupPick.ascx.vb" ClassName="GroupPick" Inherits="DayMap.GroupPick" %>

<script type="text/javascript" src="/daymap/resources/GroupPick.js"></script>  
       <div id="selectorMain" style="display:inline-block"><span runat="server" id="lblHeader" >List students for: &nbsp;</span><asp:DropDownList ID="ddlFilterType" onchange="setFilter(this);" class="jqueryFiterType" runat="server">
                        </asp:DropDownList>&nbsp;<select name="ddlGroupCategory" id="ddlGroupCategory" onchange="filterGroups();" runat="server" EnableViewState="true"></select>&nbsp;<select name="ddlFilter" id="ddlFilter" onchange="setList();" runat="server" class="jqueryFilter" enableviewstate="false"></select></div>              
 
<!-- Note for new elements: class="jqueryFiterType" and class="jqueryFiter" cannot be reused -->
<script type="text/javascript" defer="defer">
    ($('select[name$=ddlFilterType] option:selected').index() < 0)
        $('select[name$=ddlFilterType] option[value="0"]').prop('selected', true);
    if ($('select[name$=ddlFilter] option:selected').index() < 0)
        $('select[name$=ddlFilter]').css("display", "none");
</script>

line: <uc1:GroupPick ID="grpPicker" EnableViewState="true" runat="server" /> call the second code, and I want to render the text “list students for” to “list teacher for” but not change the second code. what should I do?