how can add new line character into ajax response for java

i want to populated brand drop-down list and state drop-down list by changing on country drop-down list i mean according to country name there will be change in state names groups and brand name groups too... meaning that change in a single drop-down list changes into two dropdown list i hv donw this but i want both drop down will be in a new line how can i do this i m showing my codes here please help me
country.jsp

&lt;%@page import="java.sql.*"%&gt;

<html>
      <head> <br />
      <script language="javascript" type="text/javascript"> <br />
                          var xmlHttp <br />
                          var xmlHttp
                          function showState(str)
                              {
                                  xmlHttp=GetXmlHttpObject();
                                  if(xmlHttp==null)
                                      {
                                       alert ("Browser does not support HTTP Request")
                                       return
                                      }</p>

                             var url="State.jsp";
                              url +="?count=" +str;

                              xmlHttp.onreadystatechange = stateChange;
                                xmlHttp.open("GET", url, true);
                              xmlHttp.send(null);
                         }
                     function stateChange()
                            {   
                              if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
                                  {   
                                    document.getElementById("state").innerHTML=xmlHttp.responseText


                                  }   
                           }
                     function GetXmlHttpObject()
                         {
                                 var xmlHttp=null;
                                 try
                                 {
                                     xmlHttp=new XMLHttpRequest();
                                 }
                                 catch(e)
                                 {
                                     //Internet Explorer
                                     try
                                      {
                                            xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
                                      }
                                     catch (e)
                                      {
                                            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
                                      }
                                }
                            return xmlHttp;
                        }
        &lt;/script&gt;  
  &lt;/head&gt;  
  &lt;body&gt;  
 &lt;form action="StateSub.jsp" &gt;
  &lt;select name='country' onchange="showState(this.value)"&gt;  
        &lt;option value="none"&gt;Select Country&lt;/option&gt;  
&lt;%
             String id="";
             String name= "";
             Class.forName("com.mysql.jdbc.Driver").newInstance();  
             Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/shoppingcart","root","rat");  
             Statement stmt = con.createStatement();  
             ResultSet rs = stmt.executeQuery("Select * from country");
             while(rs.next())
             {
             id=rs.getString(1);
             name=rs.getString(2);
 %&gt;
                &lt;option value="&lt;%=id%&gt;"&gt;&lt;%=name%&gt;&lt;/option&gt;  
  &lt;%
            }

 %&gt;
  &lt;/select&gt;  

  &lt;br&gt;  
  &lt;div id='state'&gt;  
  Enter state
  &lt;select name='state' &gt;  
  &lt;option value='-1'&gt;&lt;/option&gt;  
  &lt;/select&gt;  

  Enter brand
   &lt;select name='brand' &gt;  
  &lt;option value='-1'&gt;&lt;/option&gt;  
  &lt;/select&gt;  
  &lt;/div&gt; 


  &lt;input type="submit"/&gt;

  &lt;/form&gt;
  &lt;/body&gt; 
  &lt;/html&gt;

state.jsp

&lt;%@page import="java.sql.*"%&gt;

 &lt;%
String country=request.getParameter("count"); 
 System.out.println("State"+country);
 String buffer="Enter state<select name='state' ><option value='-1'>Select  state</option>"; <br />
 try
  {
         String sid="";
         String snam="";
          String bid="";
         String bnam="";

Class.forName("com.mysql.jdbc.Driver").newInstance();  
     Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/shoppingcart","root","rat");  
     Statement stmt = con.createStatement();  
     ResultSet rs = stmt.executeQuery("Select * from state where countryid='"+country+"' ");  
       while(rs.next())
       {
            sid=rs.getString(1);
            snam= rs.getString(3);
            buffer=buffer+"&lt;option value='"+sid+"'&gt;"+snam+"&lt;/option&gt;";  
       }  
     buffer=buffer+"&lt;/select&gt;";

 String buffer1="Enter brand<select name='brand' ><option value='-1'>Select  brand</option>"; 

    Statement stmt1 = con.createStatement();  
     ResultSet rs1= stmt1.executeQuery("Select * from try where countryid='"+country+"' ");  
       while(rs1.next())
       {
            bid=rs1.getString(2);
            bnam= rs1.getString(1);
            buffer1=buffer1+"&lt;option value='"+bid+"'&gt;"+bnam+"&lt;/option&gt;";  
       }  
     buffer1=buffer1+"&lt;/select&gt;"; 
      response.getWriter().print(buffer+"::\\\\n"+buffer1);

  }
 catch(Exception e)
  {
     System.out.println(e);
  }

%>

StateSub.jsp

&lt;%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%&gt;
&lt;%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="&lt;%=basePath%>">

&lt;title&gt;My JSP 'StateSub.jsp' starting page&lt;/title&gt;

&lt;meta http-equiv="pragma" content="no-cache"&gt;
&lt;meta http-equiv="cache-control" content="no-cache"&gt;
&lt;meta http-equiv="expires" content="0"&gt;    
&lt;meta http-equiv="keywords" content="keyword1,keyword2,keyword3"&gt;
&lt;meta http-equiv="description" content="This is my page"&gt;
&lt;!--
&lt;link rel="stylesheet" type="text/css" href="styles.css"&gt;
--&gt;
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