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path: root/httemplate/elements/select-exchange.html
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<% include('/elements/xmlhttp.html',
              'url'  => $p.'misc/exchanges.cgi',
              'subs' => [ $opt{'prefix'}. 'get_exchanges' ],
          )
%>

<SCRIPT TYPE="text/javascript">

  function opt(what,value,text) {
    var optionName = new Option(text, value, false, false);
    var length = what.length;
    what.options[length] = optionName;
  }

  function <% $opt{'prefix'} %>areacode_changed(what, callback) {

    what.form.<% $opt{'prefix'} %>exchange.disabled = 'disabled';
    what.form.<% $opt{'prefix'} %>exchange.style.display = 'none';
    var exchangewait = document.getElementById('<% $opt{'prefix'} %>exchangewait');
    exchangewait.style.display = 'inline';
    var exchangeerror = document.getElementById('<% $opt{'prefix'} %>exchangeerror');
    exchangeerror.style.display = 'none';

    what.form.<% $opt{'prefix'} %>phonenum.disabled = 'disabled';

    areacode = what.options[what.selectedIndex].value;

    function <% $opt{'prefix'} %>update_exchanges(exchanges) {

      // blank the current exchange
      for ( var i = what.form.<% $opt{'prefix'} %>exchange.length; i >= 0; i-- )
          what.form.<% $opt{'prefix'} %>exchange.options[i] = null;
      // blank the current phonenum too
      for ( var i = what.form.<% $opt{'prefix'} %>phonenum.length; i >= 0; i-- )
          what.form.<% $opt{'prefix'} %>phonenum.options[i] = null;
      if ( what.form.<% $opt{'prefix'} %>phonenum.type != 'select-multiple' ) {
        opt(what.form.<% $opt{'prefix'} %>phonenum, '', 'Select phone number');
      }

%     if ($opt{empty}) {
        opt(what.form.<% $opt{'prefix'} %>exchange, '', '<% $opt{empty} %>');
%     }

      // add the new exchanges
      var exchangeArray = eval('(' + exchanges + ')' );
      for ( var s = 0; s < exchangeArray.length; s++ ) {
          var exchangeLabel = exchangeArray[s];
          if ( exchangeLabel == "" )
              exchangeLabel = '(n/a)';
          opt(what.form.<% $opt{'prefix'} %>exchange, exchangeArray[s], exchangeLabel);
      }

      exchangewait.style.display = 'none';
      if ( exchangeArray.length >= 1 ) {
        what.form.<% $opt{'prefix'} %>exchange.disabled = '';
        what.form.<% $opt{'prefix'} %>exchange.style.display = '';
      } else {
        var exchangeerror = document.getElementById('<% $opt{'prefix'} %>exchangeerror');
        exchangeerror.style.display = 'inline';
      }

      //run the callback
      if ( callback != null ) 
        callback();
    }

    // go get the new exchanges
    <% $opt{'prefix'} %>get_exchanges( areacode, <% $opt{'svcpart'} %>, <% $opt{'prefix'} %>update_exchanges );

  }

</SCRIPT>

<DIV ID="exchangewait" STYLE="display:none"><IMG SRC="<%$fsurl%>images/wait-orange.gif"> <B>Finding cities / exchanges</B></DIV>

<DIV ID="exchangeerror" STYLE="display:none"><IMG SRC="<%$fsurl%>images/cross.png"> <B>Select a different area code</B></DIV>

<SELECT NAME="<% $opt{'prefix'} %>exchange" onChange="<% $opt{'prefix'} %>exchange_changed(this); <% $opt{'onchange'} %>" <% $opt{'disabled'} %>>
  <OPTION VALUE="">Select city / exchange</OPTION>
</SELECT>

<%init>

my %opt = @_;

$opt{disabled} = 'disabled' unless exists $opt{disabled};

</%init>