Introduction
Some browsers do not support all W3C standards and you will face a problem when you want to adjust IFrame height on its content using JavaScript. I have spent some hours experimenting with different DOM-objects and I have found quite a good solution for Mozilla, Internet Explorer and Opera browsers.
Using the Code
If you have IFrame in your HTML, the first step is to add onload handler as follows:
<iframe id='myFrame'
frameborder=0 scrolling=no width=100%
src="..."
onload='adjustMyFrameSize
();'>
</iframe>
Then you need to place such a script BEFORE the IFrame element:
<script type="text/javascript">
function getElement(aID)
{
return (document.getElementById) ?
document.getElementById(aID) :
document.all[aID];
}
function getIFrameDocument(aID){
var rv = null;
var frame=getElement(aID);
compliant (e.g. Mozilla)
if (frame.contentDocument)
rv = frame.contentDocument;
else rv = document.frames[aID].document;
return rv;
}
function adjustMyFrameHeight()
{
var frame = getElement
("myFrame");
var frameDoc = getIFrameDocument
("myFrame");
frame.height = frameDoc.body.offsetHeight;
}
</script>
History
- 6th July, 2007: Initial post
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