eContext and parent properties.
 </p>

 <p>
 The JSP page implementation object invokes setPageContext and setParent, in that order, before invoking doStartTag()
 or doEndTag().
 </p>

 <p>
 <B>Methods</B>
 </p>

 <p>
 There are two main actions: doStartTag and doEndTag. Once all appropriate properties have been initialized, the
 doStartTag and doEndTag methods can be invoked on the tag handler. Between these invocations, the tag handler is
 assumed to hold a state that must be preserved. After the doEndTag