Someone

function search_docfrag(node, search)
{
	while ( node.nodeType == 1 )
	{
		if ( node.innerText.indexOf(search) > -1 )
			return( true );
		
		if ( node.childeNodes.length > 0 )
			node = node.childNodes[0];
		else
			break;
	}
	return( false );
}