<?php
/* Created on [2012-5-16] */
#查询标题信息
$sql="select * from table";
    $res=mysql_query($sql);
    if(!$res) die("SQL: {$sql} <br>Error:".mysql_error());
    if(mysql_affected_rows() > 0){
        $titles = array();
        while($rows = mysql_fetch_array(MYSQL_ASSOC)){
            array_push($titles,$rows);
        }
    }
?>

<table border=1>
<?php foreach($titles as $row_Recordset_task){ ?>
    <tr>
        <td>
            <a href="javascript:void(0)" onclick="record(<?=$row_Recordset_task['TID']?>)" >
                <?=$row_Recordset_task['csa_title']?>
            </a>
        </td>
    </tr>
<?php } ?>
</table>
<div id="show"></div>


<form name="frm">
<select name="s1" onChange="redirec(this.value)">
 <option selected>请选择</option>
 <option value="1">内科</option>
 <option value="2">内科</option>
 <option value="3">内科</option>
</select>
<div id="s2"></div>
</form>
<script>
//Ajax
var xmlHttp;

    function createXMLHttpRequest() {
        if(window.XMLHttpRequest) {
            xmlHttp = new XMLHttpRequest();
        } else if (window.ActiveXObject) {
            xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
    }

    function record(id){
        createXMLHttpRequest();
        url = "action.php?id="+id+"&ran="+Math.random();
        method = "GET";
        xmlHttp.open(method,url,true);
        xmlHttp.onreadystatechange = show;
        xmlHttp.send(null);
    }

    function show(){
        if (xmlHttp.readyState == 4){
            if (xmlHttp.status == 200){
                var text = xmlHttp.responseText;
                document.getElementById("s2").innerHTML = text;
            }else {
                alert("response error code:"+xmlHttp.status);
            }
        }
    }
</script>
<?php
#action.php
if(isset($_GET['id'])){
    $sql="select * from table where id=".