// This function is used to return the thumbnail picture attached to an article within textpattern.
// This is how I use it : <txp:permlink><txp:imagematrix /></txp:permlink>

function imagematrix($atts) 
	{
		global $thisarticle,$img_dir;
		extract(lAtts(array(
			'style' => '',
			'align' => '',
			'alttxt' =>''
		),$atts));	

		$theimage = ($thisarticle['article_image']) ? $thisarticle['article_image'] : '';
		$alttxt = $thisarticle['title'];
		
		if ($theimage) {
		
			if (is_numeric($theimage)) {
				$rs = safe_row("*",'txp_image',"id='$theimage'");
				if ($rs) {
					extract($rs);
					$out = array(
						'<img',
						'src="'.hu.$img_dir.'/'.$id.$ext.'"',
						'height="'.$h.'" width="'.$w.'" alt="'.$alt.'" title="'.$alttxt.'"',
						(!empty($style)) ? 'style="'.$style.'"' : '',
						(!empty($align)) ? 'align="'.$align.'"' : '',
						' />'
					);			
					return join(' ',$out);
				}
			} else {
				return '<img src="'.$theimage.'" alt="'.$alttxt.'" title="'.$alttxt.'" />';
			}
		}
	}