iframe高度自适应-蒲公英云

iframe高度自适应

子页面头部是：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<iframe id="mainFrame" name="mainFrame" scrolling="no" src="Index.aspx"
            frameborder="0" style="padding: 0px; width: 100%; height: 1000px;"></iframe>
父页面调用：
<script type="text/javascript">
        startInit('mainFrame', 560);
</script>
<script>
var browserVersion = window.navigator.userAgent.toUpperCase();
var isOpera = browserVersion.indexOf("OPERA") > -1 ? true : false;
var isFireFox = browserVersion.indexOf("FIREFOX") > -1 ? true : false;
var isChrome = browserVersion.indexOf("CHROME") > -1 ? true : false;
var isSafari = browserVersion.indexOf("SAFARI") > -1 ? true : false;
var isIE = (!!window.ActiveXObject || "ActiveXObject" in window);
var isIE9More = (! -[1,] == false);
function reinitIframe(iframeId, minHeight) {
    try {
        var iframe = document.getElementById(iframeId);
        var bHeight = 0;
        if (isChrome == false && isSafari == false) {
            try {
                bHeight = iframe.contentWindow.document.body.scrollHeight;
            } catch (ex) {                
            }
        }
        var dHeight = 0;
        if (isFireFox == true)
            dHeight = iframe.contentWindow.document.documentElement.offsetHeight + 2;//如果火狐浏览器高度不断增加删除+2
        else if (isIE == false && isOpera == false && iframe.contentWindow) {
            try {
                dHeight = iframe.contentWindow.document.documentElement.scrollHeight;
            } catch (ex) {
            }
        }
        else if (isIE == true && isIE9More) {//ie9+
            var heightDeviation = bHeight - eval("window.IE9MoreRealHeight" + iframeId);
            if (heightDeviation == 0) {
                bHeight += 3;
            } else if (heightDeviation != 3) {
                eval("window.IE9MoreRealHeight" + iframeId + "=" + bHeight);
                bHeight += 3;
            }
        }
        else//ie[6-8]、OPERA
            bHeight += 3;
        var height = Math.max(bHeight, dHeight);
        if (height < minHeight) height = minHeight;
        //alert(iframe.contentWindow.document.body.scrollHeight + "~" + iframe.contentWindow.document.documentElement.scrollHeight);
        iframe.style.height = height + "px";
    } catch (ex) { }
}
function startInit(iframeId, minHeight) {
    eval("window.IE9MoreRealHeight" + iframeId + "=0");
    window.setInterval("reinitIframe('" + iframeId + "'," + minHeight + ")", 100);
}
</script>