var iframe					= document.createElement('iframe');
	iframe.src					= "http://scienceforums.com/external.php?s=94fc7a1fc03a89999425b8d74e00ee02&app=ccs&module=pages&section=pages&do=blockPreview&id=&k=&widget=1";
	iframe.allowTransparency	= true;
	iframe.frameBorder			= 0;
	iframe.id					= 'iframe-';
	iframe.name					= 'iframe-';
	iframe.style.overflow		= 'hidden';	window.setTimeout("checkIframe_( 'na' );", 20);	var a						= document.getElementById('block-');
	a.parentNode.insertBefore( iframe, a );
	
	function checkIframe_( dimType )
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		else
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			hash	= hash.replace( /\#::/, '' );
			hash	= hash.split( ';' );

			if( dimType == 'na' )
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				document.getElementById('iframe-').width		= hash[0] + 'px';
				document.getElementById('iframe-').height	= hash[1] + 'px';
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			{
				document.getElementById('iframe-').width		= hash[0] + 'px';
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			top.location.hash	= '';
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	}