Image source has created a link?

I am working on a list of Items which contained an oiptional image. The code was (sort of) working but now the page source shows a link to an odd page rather then a link to the perch resources file. Please help.

See :- https://www.feelgood-factor.co.uk/newsoffersfgfwithcms.html

My template:-

<li>
 <h4>
 <perch:content id="eventheading" type="text" label="event heading" textile="true" editor="markitup" maxlength="150"  />
               <br /><br />
</h4>               
<p>
 <perch:if exists="largeimage">

       <img src="<perch:content id="largeimage" type="image" label="large leaflet size image" width="780" height="500" output="h" />"
          alt="<perch:content id="largeimagealt" type="text" label="brief description of image" />" class="image17" />

 </perch:if> 

 <perch:if exists="mediumimage">

       <img src="<perch:content id="mediumimage" type="image" label="image for news page" width="300" height="300" output="h" />"
          alt="<perch:content id="mediumimagealt" type="text" label="brief description of image" />" class="image8"  align="left"/>

 </perch:if>  

  <perch:if exists="smallimage">

       <img src="<perch:content id="smallimage" type="image" label="optional small image for home page" width="120" height="120" output="h" />"
          alt="<perch:content id="smallimagealt" type="text" label="brief description of image" />" />

 </perch:if>    
 </p>

 <p>
      <perch:content id="eventdetail" type="text" label="event detail" textile="true" editor="markitup"   />
  </p>
  </li>

Thanks karen