Java EE (Java Enterprise Edition) General Discussion

I have to maintain a site which is entirely based on .shtml & JSP files.

I cant seem to make out how the interaction between the JSP's and the .shtml files take place.
Could anybody give me a startup.
Am not able to find much info on the net.

All the code in the shtml files are encoded in <ISPECT> tags.
What are these tags? googling turns up nothing.
There are no any include statements n these shtml files.

here is a aprt of one of the files:
<link href="/style/customer/format.css" rel="stylesheet" type="text/css">
<ISPECT>String Subscribe = getParameter("Subscribe")</ISPECT>
<ISPECT>String pageURL = new String("subscribe.jsp")</ISPECT>
<ISPECT>Hashtable parameters = new Hashtable()</ISPECT>
<ISPECT>setOuterPrefix("/webworks/jsp/")</ISPECT>
<ISPECT>setOuterSuffix("")</ISPECT>
<ISPECT>String html = callOuter(pageURL,parameters)</ISPECT>
<ISPECT>if(wasOuterError())
<ISPECT>showText(getOuterErrorMessage())</ISPECT>
</ISPECT>
<ISPECT>else
<ISPECT>showText(html)</ISPECT>
</ISPECT>

Kindly help me