Drupal 6/7 - Embed block in node
<?php
$block = block_load('system', 'main-menu');
$content = _block_get_renderable_array(_block_render_blocks(array($block)));
$output = drupal_render($content);
echo $output;
?>
<?php
$block = module_invoke('views', 'block' , 'view', 'fanvision_news-block_1');
print $block['content'];
?>