How to increase the size of an iframe based on its content

Hii Friends,
i want to increase the size of iframe based on its source provided in the src attribute.
i have code like this
<table>
<tr>
<td>page Header</td></tr>
<tr><td><ifame src="yahoo.com" >
</td><tr>
<tr>
<td>page Header</td></tr>
</table>

when i access this kind of page i got scrollbar in iframe .
but i don't want this scrollbar and if hardcode the width and height of iframe like the code given below

<table>
<tr>
<td>page Header</td></tr>
<tr><td><ifame src="yahoo.com"  width="300" height="1000">
</td><tr>
<tr>
<td>page Header</td></tr>
</table>

then some part of ifrmae remains blank i don't want this kind of behavior.
so my aim is to adjust the width and height of iframe to the src height and width how i can do this ..
thanks to all of u in advance.

happymanochaAsked:
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apprentiCommented:
This is the parent document:
...
<table>
<tr>
<td>page Header</td></tr>
<tr><td><iframe id="miframe" src="tpage1.htm" ></iframe>
</td><tr>
<tr>
<td>page Header</td></tr>
</table>
...

-----------------------------------------
This is a document in the iframe -- tpage1.htm

<html><body id="b1">
hello<br />
hello<br />
<script>
<!--
f=document.getElementById('b1').offsetHeight
// alert(f)
parent.document.getElementById('miframe').setAttribute('height',f)
// -->
</script>
</body></html>

You would need to style up the iframe etc and make f=f+40 or whatever
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TGHICommented:
 Maybe I'm just trying to get a cheap way out of this - but if you're upset about scrollbars showing up in your iframe, you could always take the overflow off with CSS.

    <style type= text/css>
       body {overflow: hidden}
    </style>

  Putting this code in the document within the iframe will eliminate scrollbars - but it will also cut off anything that would normally be viewed through scrolling.  I'm not really sure if that will help you or not....


        TGHI
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jaysolomonCommented:
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