父页面 parent.aspx：

<SCRIPT language="JavaScript">
               <!--
 function PopupCatSel()
 {
    var selProdWnd=window.open("PopChildTest.aspx","new","resizable=yes,width=580,height=320,top=0,scrollbars=yes");
    if(selProdWnd.opener== null)
    selProdWnd.opener = self;
    return (false);
}
 function setValue(str)
 {
   document.getElementById("TextBox1").value =str;
 }
             //-->
</SCRIPT>

<form id="Form1" method="post" runat="server">
            <table style="WIDTH: 928px; HEIGHT: 144px">
                <tr HEIGHT="30">
                    <td>
                        <INPUT TYPE="text" autocomplete="off" NAME="Street" style="WIDTH:150px" readonly>街道名</td>
                    <td>
                        <INPUT TYPE="hidden" name="StreetID" readonly>StreetID
                    </td>
                    <td>
                        <INPUT TYPE="hidden" name="AreaID" value="4">AreaID
                    </td>
                    <td>
                        <INPUT TYPE="text" autocomplete="off" NAME="Street2" style="WIDTH:150px" readonly>街道名2
                    </td>
                </tr>
                <tr>
                    <td><INPUT name="cat" onclick="return(PopupCatSel())" type="button" value="选择街道" class="Button_Search">
                    </td>
                    <td>
                        <asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
                    </td>
                    <td>
                    </td>
                    <td>
                    </td>
                </tr>
            </table>
        </form>

子页面  PopChildTest.aspx  中：

<SCRIPT language="JavaScript">
               <!--
function retForm(AreaID,StreetID,AreaName,StreetName)
{
 if (!opener) return true;
 opener.document.forms[0].AreaID.value = AreaID;
 if (!opener) return true;
 opener.document.forms[0].StreetID.value = StreetID;
 if(opener.document.forms[0].Street)
 opener.document.forms[0].Street.value = AreaName+ " >> "+ StreetName;
 opener.document.forms[0].Street2.value = AreaName+ " >> "+ StreetName;
 opener.setValue(StreetName);
 self.close();
 return false;
}
             //-->
        </SCRIPT>

<td align="left" width='10%' class="color2"><a href="" onClick="return retForm('4','339','南岗区','鞍山街')">鞍山街</a></td>
                    <td align="left" width='10%' class="color2"><a href="" onClick="return retForm('4','340','南岗区','保健路')">保健路</a></td>
                    <td align="left" width='10%' class="color2"><a href="" onClick="return retForm('4','341','南岗区','比乐街')">比乐街</a></td>