$(document).ready(function()
    {
        $("#txt_Keys").keyup(function()
        {
            var proname=$("#txt_Keys").val();
            if(proname.length!=0)
            {alert(proname);
                $("autodiv").attr("style","display:block");
                $.ajax(
                {
                    type:"GET",
                    url:"Handler.ashx",
                    data:"keyword"+proname,
                    success:function(data)
                    {
                        if(data!="")
                        {
                            <!--写到这里有点迷糊了，不知道该干啥了~-->
                        }
                    }
                })
            }
        })
    });

public void ProcessRequest (HttpContext context) 
    {
        context.Response.ClearContent();
        context.Response.ContentType = "text/plain";
        context.Response.Cache.SetCacheability(HttpCacheability.NoCache);

        string proName="";
        proName = context.Request["keyword"];
        string sql = "select Top 10 Project_Name from UDP_Project where Project_Name like '" + proName + "'";
        DataSet ds = SQLHelper.theSearch(sql);
        ArrayList list = new ArrayList();
        
        for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
        {
            list.Add(ds.Tables[0].Rows[i].ToString().Trim());     
        }
        System.Threading.Thread.Sleep(1000);
        context.Response.Write(list);
        context.Response.End();
    }

<script type="text/javascript" language="javascript"> 
$(document).ready(function() {
            $.ajax({
                type: "get",
                contentType: "application/json",
                url: "returndata.aspx",
                success: function(data) {
                    var data = eval("(" + data + ")");                 
                    $("#txtIMO").autocomplete(data, {
                        minChars: 1,
                        matchContains: true,
                        autoFill: false,
                        mustMatch: false,  //是否完全匹配         
                        width: 80, //宽度                             
                        formatItem: function(row, i, max) {
                            return row.IMO;
                        },
                        formatMatch: function(row, i, max) {
                            return row.IMO;
                        },
                        formatResult: function(row) {
                            return row.IMO;
                        }
                    });
                }
            })
        })
    </script>

------解决方案--------------------
你在那里面把数据填充到autodiv里面不就可以了 另外不要用线程 在进入时间的时候卸载掉事件 ajax请求完成或失败在绑定事件


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