/** 
** Function to do searchs on gallery pics from NextGen Gallery plugin
**
** @keywords		keywords, usually gave by the standard search query from wordpress
** @numberPicCol	number of pic by row. If null, it takes 4 by default
*/
function ngg_get_search_pictures ($keywords, $numberPicRow = NULL) {
	global $wpdb;
	$count=1; 
	if (!$numberPicRow) { $numberPicRow = "4"; }

	$nngquery = $wpdb->prepare( "
				SELECT pid,description,alttext
				FROM wp_ngg_pictures
				WHERE MATCH (description, filename, alttext) AGAINST (%s IN BOOLEAN MODE)
				AND exclude != 1
				","*".$keywords."*");

	$pictures = $wpdb->get_results($nngquery, ARRAY_A);

	if ($pictures) foreach($pictures as $pic) { 
				
		$out .= '<a href="'.nggGallery::get_image_url($pic[pid]).'" title="'.stripslashes($pic[description]).'" class="thickbox" rel="singlepic'.$pic[pid].'">';
		$out .=  '<img class="ngg-singlepic" src="'.nggGallery::get_thumbnail_url($pic[pid]).'" alt="'.stripslashes($pic[alttext]).'" title="'.stripslashes($pic[alttext]).'" />';
		$out .=  "</a>\n"; 
		
		if ($count == 0) {
			$out .= "<br />";
		}
		
		++$count;
		$count%=$numberPicRow;
	}
	return $out;
};