function ical_list_calendars() {
		global $wpdb, $wp_version;
		?>
			<select name="ical_list_calendars" id="ical_list_calendars" onchange="var tp= document.getElementById('ical_list_calendars'); 
var val = tp.options[tp.selectedIndex].value;
if (val){
document.getElementById('ical_apple').style.display='none';
document.getElementById('ical_google').style.display='none';
document.getElementById('ical_any').style.display='none';
var nw = document.getElementById(val);
nw.style.display = 'block';
}
">
				<option value="" selected="selected">Select...</option>
				<option value="ical_apple">Apple iCal</option>
				<option value="ical_google">Google Calendar</option>
				<option value="ical_any">Others</option>
				<!--option value="ical_yahoo">Yahoo! Calendar
			</select>
		< ?php
		if ($wp_version < '2.3')
		{
			$categories = $wpdb->get_results("
				SELECT DISTINCTROW(cat.cat_id) as id, cat.cat_name as name
				FROM $wpdb->categories AS cat, $wpdb->posts AS posts, $wpdb->postmeta AS meta, $wpdb->post2cat AS post2cat
				WHERE posts.ID = meta.post_id
				AND posts.post_status = 'publish'
				AND meta.meta_key = '$this->_name'
				AND post2cat.post_id= posts.ID
				AND cat.cat_id = post2cat.category_id
			",OBJECT);
		}
		else
		{
			$categories = $wpdb->get_results("
				SELECT DISTINCTROW(t.term_id) as id, t.name as name
				FROM $wpdb->terms AS t
				INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id
				INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id
				INNER JOIN $wpdb->posts as p ON p.ID = tr.object_id
				INNER JOIN $wpdb->postmeta AS pm ON pm.post_id = p.ID
				WHERE tt.taxonomy = 'category'
				AND p.post_status = 'publish'
				AND pm.meta_key = '$this->_name'
			",OBJECT);
		}
		if ($categories){
			$webcal = ereg_replace("^http://(.*)","\\1",get_settings('home')); 
			?>
			<div id="ical_apple" class="ical_calendar">
				<img src="<?php echo $this-/>_url_plugin ?>/images/calendar_ical.gif" alt="Apple iCal"/>
				<ul>
					<li><a href="webcal://<?php echo $webcal ?>/?ical=iCal">All Events</a></li>
			< ?php foreach($categories as $cat){ ?>
					<li><a href="webcal://<?php echo $webcal ?>/?ical=iCal&cat=< ?php echo $cat->id?>">< ?php echo $cat->name?></a></li>
			< ?php } ?>
				</ul>
			</div>
			<div id="ical_google" class="ical_calendar">
				<img src="<?php echo $this-/>_url_plugin ?>/images/calendar_google.gif"  alt="Google Calendar"/>				
				<ul>
					<li>
<a href="http://www.google.com/calendar/render?cid=<?php echo urlencode("http://".$webcal."/?ical=iCal")?>" target="_blank">All Events</a></li>
			< ?php foreach($categories as $cat){ ?>
					<li><a href="http://www.google.com/calendar/render?cid=<?php echo urlencode('http://'.$webcal .'/?ical=iCal&cat=') . $cat->id?>">< ?php echo $cat->name?></a></li>
			< ?php } ?>
				</ul>
			</div>
			<div id="ical_any" class="ical_calendar">
				<ul>
					<li><a href="?ical=iCal">All Events</a></li>
			< ?php foreach($categories as $cat){ ?>
					<li><a href="?ical=iCal&cat=<?php echo $cat->id?>">< ?php echo $cat->name?></a></li>
			< ?php } ?>
				</ul>
			</div>
			< ?php
		}
		?> < ?php
	}