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首页 / 脚本样式 / JavaScript / javascript中兼容主流浏览器的动态生成iframe方法

以下代码在IE8下运行通过,在IE9中出错:复制代码 代码如下:
document.createElement("<iframe id="yige-org-iframe" src="yige.org.logo.gif" style="position:absolute;top:0;left:0;width:1px;height:1px;visibility:hidden;"></iframe>");
错误提示:exception : SCRIPT5022: DOM Exception: INVALID_CHARACTER_ERR (5)

思路分析:
第一步:兼容IE9,firefox,Opera,Safari等浏览器;

复制代码 代码如下:var iframe = document.createElement("iframe");
iframe.setAttribute("id", "yui-history-iframe");
iframe.setAttribute("src", "../../images/defaults/transparent-pixel.gif");
iframe.setAttribute("style","position:absolute;top:0;left:0;width:1px;height:1px;visibility:hidden;");


第二步:兼容IE6-8:由于ie6-8 不能修改iframe的name属性
复制代码 代码如下:
var oFrame = isIE ? document.createElement("<iframe name=/"" + this._FrameName + "/">") : document.createElement("iframe");
oFrame.name = "iframName";

综合解决办法:
复制代码 代码如下:
var isIE = (document.all) ? true: false; //这里仅仅简单的对是否是IE进行判断,详细浏览器判断:请参考浏览器类型侦测
var ua = navigator.userAgent.toLowerCase().match(/msie ([/d.] + ) / )[1];
if (ua == "9.0") {
    isIE = false;
}
var oFrame = isIE ? document.createElement("<iframe name=/"" + this._FrameName + " / ">") : document.createElement("iframe");oFrame.name = "iframName";
//=========================

function ajaxpost(formid, showid, waitid, showidclass, submitbtn, recall) {
    var waitid = typeof waitid == "undefined" || waitid === null ? showid : (waitid !== "" ? waitid : "");
    var showidclass = !showidclass ? "" : showidclass;
    var ajaxframeid = "ajaxframe";
    var ajaxframe = $(ajaxframeid);
    var formtarget = $(formid).target;

    var handleResult = function() {
        var s = "";
        var evaled = false;

        showloading("none");
        try {
            s = $(ajaxframeid).contentWindow.document.XMLDocument.text;
        } catch (e) {
            try {
                s = $(ajaxframeid).contentWindow.document.documentElement.firstChild.wholeText;
            } catch (e) {
                try {
                    s = $(ajaxframeid).contentWindow.document.documentElement.firstChild.nodeValue;
                } catch (e) {
                    s = "内部错误,无法显示此内容";
                }
            }
        }

        if (s != "" && s.indexOf("ajaxerror") != -1) {
            evalscript(s);
            evaled = true;
        }
        if (showidclass) {
            $(showid).className = showidclass;
            if (submitbtn) {
                submitbtn.disabled = false;
            }
        }
        if (!evaled && (typeof ajaxerror == "undefined" || !ajaxerror)) {
            ajaxinnerhtml($(showid), s);
        }
        ajaxerror = null;
        if ($(formid)) $(formid).target = formtarget;
        if (typeof recall == "function") {
            recall();
        } else {
            eval(recall);
        }
        if (!evaled) evalscript(s);
        ajaxframe.loading = 0;
        $("append_parent").removeChild(ajaxframe);
    };
    if (!ajaxframe) {
        try {
            ajaxframe = document.createElement("<iframe name="" + ajaxframeid + "" id="" + ajaxframeid + ""></iframe>");
        } catch (e) {
            ajaxframe = document.createElement("iframe");
            ajaxframe.name = ajaxframeid;
            ajaxframe.id = ajaxframeid;
        }
        ajaxframe.style.display = "none";
        ajaxframe.loading = 1;
        $("append_parent").appendChild(ajaxframe);
    } else if (ajaxframe.loading) {
        return false;
    }

    _attachEvent(ajaxframe, "load", handleResult);

    showloading();
    $(formid).target = ajaxframeid;
    $(formid).action += "&inajax=1";
    $(formid).submit();
    return false;
}