Classic ASP, Search Recordset on pick list change

I have a classic ASP page that has a list box populated by a record set. The selected Value must be as it is. However, the record set contains another field called 'tel' that I want to use to populate a text box simultaneously. Would have been a simple task if I could change the Value to <%= RS("tel") %>, but I cannot. I need to search the record set based on "first_nm" and "last_nm". How do I do it?
<td>
					<select name="req_pvisitname" >
						<%
							Do Until RS.EOF
						%>
						<option value="<%= RS("first_nm") %> <%= RS("last_nm") %>"><%= RS("last_nm") %>,&nbsp;<%= RS("first_nm") %></option>
						<%	
							RS.MoveNext
							Loop
						%>
					</select>
                    
				</td>

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josephdtsAsked:
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leakim971PluritechnicianCommented:
Test page : https://jsfiddle.net/746vd6eb/

you just need to add a data attribute : data-tel to each option and retrieve it on any change to put the value in a hidden (or not) field :
<td>
       <select name="req_pvisitname" >
       <%
            Do Until RS.EOF
       %>
               <option data-tel="<%= RS("tel") %>" value="<%= RS("first_nm") %> <%= RS("last_nm") %>"><%= RS("last_nm") %>,&nbsp;<%= RS("first_nm") %></option>
       <%	
           RS.MoveNext
           Loop
       %>
       </select>
       <input type="hidden" id="tel" name="tel" />      
</td>

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a bit of javascript to put the selected tel in an hidden field with ID and name as "tel"  :

<script>
     document.getElementsByName("req_pvisitname")[0].onchange = function() {
         var selectedOption = this.options[this.selectedIndex];
         var tel = selectedOption.getAttribute("data-tel");
         document.getElementById("tel").value = tel;
     }
</script>
</body>
</html>

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please note I put the code in the body at the end
0

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