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gistfile1.txt

		<?php
		if (has_post_thumbnail()) {
		   $imgsrc = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID),'medium');
		} elseif ($postimages = get_children("post_parent=$post->ID&post_type=attachment&post_mime_type=image&numberposts=0")) {
		foreach($postimages as $postimage) {
		   $imgsrc = wp_get_attachment_image_src($postimage->ID, 'medium');
		}
		} elseif (preg_match('/<img [^>]*src=["|\']([^"|\'] )/i', get_the_content(), $match) != FALSE) {
		   $imgsrc[0] = $match[1];
		} else {
		   $imgsrc[0] = get_template_directory_uri() . '/img/blank.gif';
		   $imgsrc[1] = '200';
		   $imgsrc[2] = '200';
		}
		?>
		<img src="<?php echo $imgsrc[0]; ?>" alt="<?php the_title_attribute(); ?>" style="width:200px; height:<?php echo (200/$imgsrc[1]*$imgsrc[2]); ?>px" />
		<?php unset($imgsrc); ?>