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javascript中兼容主流瀏覽器的動(dòng)態(tài)生成iframe方法

 更新時(shí)間：2014年05月05日 10:46:31   作者：  
這篇文章主要介紹了javascript中兼容主流瀏覽器的動(dòng)態(tài)生成iframe方法,需要的朋友可以參考下

以下代碼在IE8下運(yùn)行通過(guò)，在IE9中出錯(cuò)：

復(fù)制代碼 代碼如下:

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>');

錯(cuò)誤提示：exception : SCRIPT5022: DOM Exception: INVALID_CHARACTER_ERR (5)

思路分析：
第一步：兼容IE9，firefox，Opera，Safari等瀏覽器；

復(fù)制代碼 代碼如下:
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屬性

復(fù)制代碼 代碼如下:

var oFrame = isIE ? document.createElement("<iframe name=/"" + this._FrameName + "/">") : document.createElement("iframe");
oFrame.name = "iframName";

綜合解決辦法:

復(fù)制代碼 代碼如下:

var isIE = (document.all) ? true: false; //這里僅僅簡(jiǎn)單的對(duì)是否是IE進(jìn)行判斷，詳細(xì)瀏覽器判斷：請(qǐng)參考瀏覽器類型偵測(cè)
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 = '內(nèi)部錯(cuò)誤，無(wú)法顯示此內(nèi)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;
}

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