hello i have a script that allows the picture to change whenever
a different dj is on the air?

please can someone help

HTML Code:
<form id="nowPlaying">    <fieldset id="everyBorder">    <legend id="everyLegend"><h1>Now Playing</h1></legend>    <div id="NPT">       <div id="NPC">           <!-- This images changes depending who is on air -->          <a href="http://149.56.234.138:8157/index.html?sid=1" target="_blank">          <img id="djOnAir" src="onairinfo/images/logo.gif" alt="Now Playing!"></a>        </div>       <div id="NPC">          <!-- BEGINS: SHOUTCASTWIDGETS.COM CURRENTLY PLAYING-->            <iframe id="currently_playing" src="http://32oneweb.com/bio.php?username=bukqghkz&amp;            buttons_background=666666&amp;            buttons_text=FFF&amp;            buttons_background_hover=000000&amp;            buttons_background_active=FF0000&amp;            text=FFFFFF&amp;            background=000000&amp;            link_color=EEEEEE&amp;            image=round&amp;float=right&amp;size=1&amp;header_text=FF0000&amp;header_size=2&amp;border=dashed&amp;stage=444444&amp;amazon=&amp;sevendigital=&amp;            facebook=yes&amp;twitter=yes&amp;server=yes&amp;listeners=yes&amp;language=yes&amp;font=georgia&amp;ads=bottom&amp;ad_color=FFFFFF&amp;sell_ads=yes"             name="currently_playing" scrolling="no"></iframe>        </div>   </div></fieldset></form><br>
this is the script, i don't know if i have done anything wrong or not