Hi again,

You are right. But just to go a little further, you will find a lot of the
so-called __doPostBack function in javascript links, which is in fact a aspx
generated function
AN example :
<http://www.ewineasia.com/showitems.aspx?type=w&catid=Red>

Where the "next" button is linked to this "aspx" / javascript function.

It is in fact a normalized function, and as such could be retrieved by
httrack.

In the page you will always have three elements : the form, the js function
and the a caller: 
   <form name="myForm" method="post" action="test.aspx" id="myForm">
4 	        <input type="hidden" name="__EVENTTARGET" value="" />
5 	        <input type="hidden" name="__EVENTARGUMENT" value="" />
6 	        <input type="hidden" name="__VIEWSTATE"
7 	        value="dDwtMTAwOTA0ODU1NTs7PsllCK1DzvZsK0J6OQ2dxKqmEwVs" />
8 	
9 	<script language="javascript">
10 	<!--
11 	function __doPostBack(eventTarget, eventArgument) {
12 	    var theform = document.myForm;
13 	    theform.__EVENTTARGET.value = eventTarget;
14 	    theform.__EVENTARGUMENT.value = eventArgument;
15 	    theform.submit();
16 	}
17 	// -->
18 	</script>
19 	
20 	<a id="Test" href="javascript:__doPostBack('Test','')">Create Text
file</a>

That's all, the "only" thing to do is to send the form with its parameters.

This is one interesting evolution for httrack.

Best,

Emmanuel Cartier