关于一个js下拉框的问题

[yuri09]

<script language="javascript" type="text/javascript">
     String.prototype.trim = function() {
        return this.replace(new RegExp("(^[\\s]*)|([\\s]*$)", "g"), "");
    };
    var surl = "";
    function ShowSuggest(objInputText, Surl) {
        surl = Surl;
        objInputText.onkeyup = ControlSuggest;
        objInputText.onblur = RemoveSuggest;
        var oldValue = objInputText.parentElement.getElementsByTagName("h6")[0];
        function ControlSuggest() {
            var ie = (document.all) ? true : false;
            if (ie) {
                var keycode = event.keyCode;
                if (keycode == 40) {//向下
                    ChangeSelection(false);
                    return;
                }
                if (CheckSuggest()) {
                    if (keycode == 38) {//向上
                        ChangeSelection(true);
                        return;
                    }
                    if (keycode == 13) {//回车
                        RemoveSuggest();
                        return;
                    }
                    if (keycode == 46) {//del
                        DeleteSuggest();
                        objInputText.value = oldValue.innerText;
                        oldValue.innerText = "";
                        return;
                    }
                    if ((keycode >= 16 && keycode <= 36) || (keycode >= 41 && keycode <= 47)) {
                        return;
                    }
                }
                CreateSuggest();
            }
        }
        //删除提示前对文本做相关操作
        function RemoveSuggest() {
            if (CheckSuggest()) {
                var panelSuggest = document.getElementById("divSuggestPanel");
                var inputIndex = document.getElementById("inputIndex");
                if (CheckActiveElement(panelSuggest) || event.keyCode == 13) {
                    var selectIndex = Number(inputIndex.value);
                    if (selectIndex >= 0) {
                        var tb = panelSuggest.getElementsByTagName("table")[0];
                        objInputText.value = tb.rows[selectIndex].cells[0].innerText;
                    }
                }
                else {
                    objInputText.value = oldValue.innerText;
                }
                document.body.removeChild(inputIndex);
                document.body.removeChild(panelSuggest);
                oldValue.innerText = "";
            }
            else {
                return;
            }
        }
        //删除提示的方法，不对文本做任何操作
        function DeleteSuggest() {
            if (CheckSuggest()) {
                var panelSuggest = document.getElementById("divSuggestPanel");
                var inputIndex = document.getElementById("inputIndex");
                document.body.removeChild(inputIndex);
                document.body.removeChild(panelSuggest);
            }
        }
        //加载提示框
        //var suggestList;
        function CreateSuggest() {
            //提示框存在，而且文本框值与上次的输入不同时，才进行下面的加载工作
            if (CheckSuggest()) {
                if (oldValue.innerText.trim() == objInputText.value.trim()) {
                    return;
                }
                else {
                    DeleteSuggest();
                }
            }
            if (CheckSuggest() && objInputText.value.trim().length == 0) {//提示框存在,但是文本框没有内容,这时删除提示框
                DeleteSuggest();
                oldValue.innerText = "";
                return;
            }
            //如果输入为空格，就退出
            if (objInputText.value.trim().length == 0) {
                return;
            }
            //从数据源中取数据
            var suggestList = GetSuggestList();
            if (suggestList == null || suggestList.length < 1) {//对传入的数组进行判断，为空或者列表为0就退出
                DeleteSuggest();                                  //开始的输入有提示，后面的输入可能没有提示，所以数据源为空时要尝试删除提示
                oldValue.innerText = "";
                return;
            }
            oldValue.innerText = objInputText.value;              //以上条件都符合，根据数据源来创建数据

            var inputIndex = document.createElement("input");     //用隐藏控件来做索引的保存
            inputIndex.type = "hidden";
            inputIndex.id = "inputIndex";
            inputIndex.value = -1;
            var suggest = "";                                     //根据数据源来写div提示信息
            suggest += "<table>";
            for (var nIndex = 0; nIndex < suggestList.length; nIndex++) {
                suggest += "<tr onmouseover=\" for(var n=0;n<this.parentElement.rows.length;n++){this.parentElement.rows[n].className='trmouseout';};this.className='trmouseover';var inputIndex = document.getElementById('inputIndex');inputIndex.value = this.rowIndex; \" onmouseout=\"this.className='trmouseout';\"  ><td>";
                suggest += suggestList[nIndex];
                suggest += "</td></tr>";
            }
            suggest += "</table>";
            var panelSuggest = document.createElement("div");                //创建装提示框的容器div

            panelSuggest.id = "divSuggestPanel";
            panelSuggest.className = "pnlSuggest";                           //设置对象的类
            panelSuggest.style.width = objInputText.clientWidth + "px";      //设置对象的宽度，与文本框宽度相同
            panelSuggest.style.top = (GetPosition()[0] + objInputText.offsetHeight + 1) + "px";
            panelSuggest.style.left = GetPosition()[1] + "px";
            panelSuggest.innerHTML = suggest;
            document.body.appendChild(panelSuggest);                         //把提示框和索引控件添加进来        
            document.body.appendChild(inputIndex);
        }
        //更换选项
        function ChangeSelection(isup) {
            //按向下创建提示
            if (!CheckSuggest() && objInputText.value.trim().length != 0 && !isup) {//文本框有内容,提示不存在,向下
                CreateSuggest();
                return;
            }
            if (CheckSuggest()) {
                var inputIndex = document.getElementById("inputIndex");                 //得到索引的值
                var selectIndex = Number(inputIndex.value);
                var panelSuggest = document.getElementById("divSuggestPanel");          //得到提示框
                var tb = panelSuggest.getElementsByTagName("table")[0];
                var maxIndex = tb.rows.length - 1;                                      //提示信息的最大索引

                if (isup) {//向上
                    if (selectIndex >= 0)                                                //索引不能为负
                    {
                        tb.rows[selectIndex].className = "trmouseout";
                        selectIndex--;
                        if (selectIndex >= 0) {
                            tb.rows[selectIndex].className = "trmouseover";
                        }
                    }
                }
                else {
                    if (selectIndex < maxIndex)                                          //大于等于最大索引就不做任何操作
                    {
                        if (selectIndex >= 0) {
                            tb.rows[selectIndex].className = "trmouseout";
                        }
                        selectIndex++;
                        tb.rows[selectIndex].className = "trmouseover";
                    }
                }
                inputIndex.value = selectIndex;
                if (selectIndex >= 0) {
                    objInputText.value = tb.rows[selectIndex].cells[0].innerText;
                }
                else {
                    objInputText.value = oldValue.innerText;
                }
            }
        }
        //判断活动对象是否为obj对象的从属对象
        function CheckActiveElement(obj) {
            var isAe = false;
            var objtemp = document.activeElement;
            while (objtemp != null) {
                if (objtemp == obj) {
                    isAe = true;
                    break;
                }
                objtemp = objtemp.parentElement;
            }
            return isAe;
        }
        //检查提示框是否存在
        function CheckSuggest() {
            var panelSuggest = document.getElementById("divSuggestPanel");
            if (panelSuggest == null) {
                return false;
            }
            else {
                return true;
            }
        }
        //获取文本框的位置
        function GetPosition() {
            var top = 0, left = 0;
            var obj = objInputText;
            do {
                top += obj.offsetTop;         //距离顶部
                left += obj.offsetLeft;       //距离左边
            }
            while (obj = obj.offsetParent);
            var arr = new Array();
            arr[0] = top;
            arr[1] = left;
            return arr;
        }

        //得到提示数据
        function GetSuggestList() {
            var intIndex = 0; suggestList = new Array();
            var dataoptions = objInputText.parentElement.getElementsByTagName("option");
            var inputtxt = objInputText.value;
            //var url = "AdvSearchAjax.aspx?names=" + escape(inputtxt);
            var url = surl + escape(inputtxt);
//            for (var n = 0; n < dataoptions.length; n++) {
//                if (dataoptions[n].text.indexOf(inputtxt) > -1) {
//                    suggestList[intIndex++] = "test" + n ; //dataoptions[n].text;
//                }
//            }

            for (var n = 0; n < dataoptions.length; n++) {
                suggestList[intIndex++] = inputtxt + n
            }

           return suggestList;
        }
  
    }
</script>

[yuri09]

以上是的是js代码，高手帮我看看，改两个bug
下面是控件

 <asp:TextBox ID="txtIndex" runat="server" Width="500px" name="txtInput"  onkeydown="ShowSuggest(this,'XX.xml');"  autocomplete="off"></asp:TextBox>

问题有点急。那位老大帮我解决一下。
问题1
输入一个是空格没有反应.
问题2
鼠标划过，然后点另他地方拿到的值是有问题

[evaa006]

ding

[yuri09]

怎么没人回答的呢?

[yuri09]

.....这么久的帖怎么没人回答的。

[xiongsai006]

再等等吧，这个有点深奥哦，亲。