在开发项目过程中，用iframe嵌套，会发现一个问题，用iframe嵌套的html结构右边不会自动适应高度。
这时候找到了一个解决方法：
<iframe name="my_iframe" id="mainframe" marginheight="0" marginwidth="0" frameborder="0" scrolling="no" width="100%" height="100%" src=""></iframe>
2、记住要引入iframe.js文件
<script type="text/javascript" src="js/iframe.js" ></script>
下面是iframe.js的具体内容
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)
bHeight = iframe.contentWindow.document.body.scrollHeight;
var dHeight = 0;
if (isFireFox == true)
dHeight = iframe.contentWindow.document.documentElement.offsetHeight + 2;
else if (isIE == false && isOpera == false)
dHeight = iframe.contentWindow.document.documentElement.scrollHeight;
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;
iframe.style.height = height + "px";
} catch (ex) { }
}
function startInit(iframeId, minHeight) {
eval("window.IE9MoreRealHeight" + iframeId + "=0");
window.setInterval("reinitIframe('" + iframeId + "'," + minHeight + ")", 100);
}
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持脚本之家！
