<script>的innerHTML在FF中工作,而不是IE

Question

我试图<select>通过Ajax 填充元素.它在FF中运行良好,但我unknown runtime error在IE中得到了一个.

HTML:

<select id="emp_select" name="emp_select">
    <option value=" ">Please enter a store</option> 
</select>

使用Javascript:

$("#store").blur(function() {
    populateDropdowns();
});

...

function populateDropdowns() {
        var store = $("#store").val();

        if (store.length != 4) {
            alert("Store # must be 4 digits!");
            $("#store").focus();
            return false;
        }

        var xhrJSON = new XMLHttpRequest();
        var xhrEmpSelect = new XMLHttpRequest();
        var xhrMgrSelect = new XMLHttpRequest();

        var jsonDone = false;
        var empSelectDone = false;
        var mgrSelectDone = false;

        $("#processing-dialog").dialog({
                width: 300,
                height: 150
        });

        xhrJSON.onreadystatechange = function() {
            if (xhrJSON.readyState == 4) {
                if (xhrJSON.status == 200) {
                    var js = document.createElement('script');
                    js.type = 'text/javascript';

                    js.innerHTML = xhrJSON.responseText;
                    var scr = document.getElementsByTagName('script')[1];
                    scr.parentNode.insertBefore(js,scr);

                    jsonDone = true;
                    if (jsonDone && empSelectDone && mgrSelectDone) {
                        $("#processing-dialog").dialog("close");
                        $("#processing-dialog").dialog("destroy");
                        return true;
                    }
                } else {
                    return false;
                }
            }
        }

        xhrEmpSelect.onreadystatechange = function() {
            if (xhrEmpSelect.readyState == 4) {
                if (xhrEmpSelect.status == 200) {
                    $("#emp_select").html(xhrEmpSelect.responseText);
                    empSelectDone = true;
                    if (jsonDone && empSelectDone && mgrSelectDone) {
                        $("#processing-dialog").dialog("close");
                        $("#processing-dialog").dialog("destroy");
                        return true;
                    }
                } else {
                    return false;
                }
            }
        }

        xhrMgrSelect.onreadystatechange = function() {
            if (xhrMgrSelect.readyState == 4) {
                if (xhrMgrSelect.status == 200) {
                    $("#mgr_select").html(xhrMgrSelect.responseText);
                    mgrSelectDone = true;
                    if (jsonDone && empSelectDone && mgrSelectDone) {
                        $("#processing-dialog").dialog("close");
                        $("#processing-dialog").dialog("destroy");
                        return true;
                    }
                } else {
                    return false;
                }
            }
        }

        var url = "ajax.cgi";

        var JSONdata = "action=generateJSON&store=" + store;
        var EmpSelectData = "action=generateEmpSelect&store=" + store;
        var MgrSelectData = "action=generateMgrSelect&store=" + store;

        xhrJSON.open("POST",url);
        xhrJSON.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        xhrJSON.send(JSONdata);

        xhrEmpSelect.open("POST",url);
        xhrEmpSelect.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        xhrEmpSelect.send(EmpSelectData);

        xhrMgrSelect.open("POST",url);
        xhrMgrSelect.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        xhrMgrSelect.send(MgrSelectData);
    }

该blur处理程序调用一个函数来填充(全部)的不同选择元素,再加上保存所有员工的关联数组的名字与返回为在这两个选项的值雇员ID匹配一个JavaScript对象select的元素.

返回XHR文本(对于xhrJSON,content-type = application/json):

var empArray = new Array({ id:"12345678", title:"The Title", code:"C123", name:"John Doe"},...);

返回的XHR文本(xhrEmpSelect,content-type = text/html):

<option value=" ">Select One</option>
<option value="John Doe">John Doe</option>
<option value="Joe Blow">Joe Blow</option>
...
<option value="other">Other...</option>
</select>

为xhrMgrSelect返回类似的文本,content-type = text/html

因此在FF中一切都很好,JS对象遇到并插入到DOM中,并且两个<select>元素也都被填充.但是在IE中,我unknown runtime error在xhrJSON.onreadystatechange处理程序中得到一个我尝试并设置js.innerHTML为xhrJSON.responseText.

我究竟做错了什么？

Answer 1

尝试使用js.text = xhrJSON.responseText;而不是innerHTML.我相信您遇到的问题与您无法将HTML插入<script>块中这一事实有关.