1 files changed, 108 insertions, 0 deletions
diff --git a/httemplate/elements/xmlhttp.html b/httemplate/elements/xmlhttp.html
new file mode 100644
index 0000000..2df3c42
--- /dev/null
+++ b/httemplate/elements/xmlhttp.html
@@ -0,0 +1,108 @@
+<%doc>
+
+Example:
+
+  include( '/elements/xmlhttp.html',
+    # required
+    'url'  => $p.'misc/something.html',
+    'subs' => [ 'subroutine' ],
+
+    # optional
+    'method' => 'GET', #defaults to GET, could specify POST
+    'key'    => 'unique', #unique key
+
+  );
+
+</%doc>
+<% include( '/elements/rs_init_object.html' ) %>
+<SCRIPT TYPE="text/javascript">
+
+% foreach my $func ( @{$opt{'subs'}} ) { 
+%
+%       my $furl = $url;
+%       $furl =~ s/\"/\\\\\"/; #javascript escape
+%
+%  
+
+
+    function <%$key%><%$func%>() {
+        // count args; build URL
+        var url = "<%$furl%>";
+        var a = <%$key%><%$func%>.arguments;
+
+        var args;
+        var len;
+        var content = 'sub=<% uri_escape($func) %>';
+        if ( a && typeof a  == 'object'  && a[0].constructor == Array ) {
+            args = a[0];
+            len = args.length
+        } else {
+            args = a;
+            len = args.length - 1;
+        }
+        for (var i = 0; i < len; i++) 
+            content = content + "&arg=" + escape(args[i]);
+        content = content.replace( /[+]/g, '%2B'); // fix unescaped plus signs 
+
+        if ( '<%$method%>' == 'GET' ) {
+          url = url + content;
+        }
+
+        //alert('<%$method%> ' + url);
+
+        var xmlhttp = rs_init_object();
+        xmlhttp.open("<%$method%>", url, true);
+
+        xmlhttp.onreadystatechange = function() {
+            if (xmlhttp.readyState != 4) 
+        	return;
+
+            if (xmlhttp.status != 200) {
+              alert(xmlhttp.status + " status connecting to " + url);
+            } else {
+              var data = xmlhttp.responseText;
+              //alert('received response: ' + data);
+              a[a.length-1](data);
+              if ( data.indexOf("<b>System error</b>") > -1 ) {
+                var w;
+                if ( w = window.open("about:blank") ) {
+                  w.document.write(data);
+                } else {
+                  // popup blocking?  should use an overlib popup instead 
+                  alert("Error popup disabled; try disabling popup blocking to see");
+                }
+              }
+            }
+        }
+
+        if ( '<%$method%>' == 'POST' ) {
+
+          xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+          xmlhttp.send(content);
+
+        } else {
+
+          xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
+          xmlhttp.send(null);
+
+        }
+
+        //rs_debug("x_$func_name url = " + url);
+        //rs_debug("x_$func_name waiting..");
+    }
+% } 
+
+
+</SCRIPT>
+<%init>
+my ( %opt ) = @_;
+
+my $url = $opt{'url'};
+my $method = exists($opt{'method'}) ? $opt{'method'} : 'GET';
+#my @subs = @{ $opt{'subs'};
+my $key = exists($opt{'key'}) ? $opt{'key'} : '';
+
+$url .= ( ($url =~ /\?/) ? '&' : '?' )
+  if $method eq 'GET';
+
+</%init>