Check if URL is an image

[isgaso]

I want to edit submit_step_2.tpl to achieve that when an user post a URL, system can show what kind of type is URL -> WEB / IMAGE / VIDEO

In line 26 (Pligg 9.9) you can see this:

PHP Code:

<a href="{$submit_url}" class="simple">{$submit_url}</a> 


Add this:

PHP Code:

 {if $url_short eq "http://www.collegehumor.com" || $url_short eq "http://www.guba.com" || $url_short eq "http://video.google.com" || $url_short eq "http://video.google.co.uk" || $url_short eq "http://youtube.com" || $url_short eq "http://www.youtube.com" || $url_short eq "http://uk.youtube.com" || $url_short eq "http://br.youtube.com" || $url_short eq "http://fr.youtube.com" || $url_short eq "http://ie.youtube.com" || $url_short eq "http://it.youtube.com" || $url_short eq "http://jp.youtube.com" || $url_short eq "http://nl.youtube.com" || $url_short eq "http://pl.youtube.com" || $url_short eq "http://es.youtube.com" || $url_short eq "http://www.livevideo.com" || $url_short eq "http://www.youare.tv" || $url_short eq "http://youare.tv" || $url_short eq "http://stage6.divx.com" || $url_short eq "http://www.metacafe.com" || $url_short eq "http://soapbox.msn.com" || $url_short eq "http://www.gofish.com" || $url_short eq "http://www.ifilm.com" || $url_short eq "http://www.veoh.com" || $url_short eq "http://vimeo.com" || $url_short eq "http://www.vimeo.com" || $url_short eq "http://vids.myspace.com" || $url_short eq "http://one.revver.com" || $url_short eq "http://xoinks.com" || $url_short eq "http://www.xoinks.com" || $url_short eq "http://www.dailymotion.com" || $url_short eq "http://www.liveleak.com" }
             <img src="{$my_pligg_base}/templates/{$the_template}/images/film.png" align="bottom" alt="Video" /> <b>(Video)</b>
             {elseif $url_short eq "http://*[.gif|.jpg|.bmp]$"}
            <img src="{$my_pligg_base}/templates/{$the_template}/images/image.png" align="bottom" alt="Imagen" /> <b>(Imagen)</b>
             {else}
            <img src="{$my_pligg_base}/templates/{$the_template}/images/web.png" align="bottom" alt="Web" /> <b>(Web)</b>
            {/if} 


I need help please!

[isgaso]

any ideas?

[isgaso]

anybody???