Add a new and very hip fullscreen interface; not exposed to the users just yet,
authorSteinar H. Gunderson <sesse@debian.org>
Mon, 31 Jul 2006 15:02:20 +0000 (17:02 +0200)
committerSteinar H. Gunderson <sesse@debian.org>
Mon, 31 Jul 2006 15:02:20 +0000 (17:02 +0200)
but it's coming.

next.png [new file with mode: 0644]
perl/Sesse/pr0n/Index.pm
perl/Sesse/pr0n/pr0n.pm
pr0n-fullscreen.css [new file with mode: 0644]
pr0n-fullscreen.js [new file with mode: 0644]
previous.png [new file with mode: 0644]

diff --git a/next.png b/next.png
new file mode 100644 (file)
index 0000000..0b19641
Binary files /dev/null and b/next.png differ
index 335dcd2566fbc00e47c6f04963d2b73a94f3a691..52766ab3a435513cbf568ba3401bd65391e2fdd5 100644 (file)
@@ -50,6 +50,7 @@ sub handler {
        }
                
        my %settings = %defsettings;
+       my $fullscreen = (defined($apr->param('fullscreen')) && $apr->param('fullscreen') eq '1');
 
        for my $s qw(thumbxres thumbyres xres yres start num all infobox rot sel) {
                my $val = $apr->param($s);
@@ -102,142 +103,151 @@ sub handler {
                or dberror($r, "image enumeration");
 
        # Print the page itself
-       Sesse::pr0n::Common::header($r, "$name [$event]");
-       Sesse::pr0n::Templates::print_template($r, "date", { date => $date });
-
-       if (Sesse::pr0n::Overload::is_in_overload($r)) {
-               Sesse::pr0n::Templates::print_template($r, "overloadmode");
-       }
-
-       print_thumbsize($r, $event, \%settings, \%defsettings);
-       print_viewres($r, $event, \%settings, \%defsettings);
-       print_pagelimit($r, $event, \%settings, \%defsettings);
-       print_infobox($r, $event, \%settings, \%defsettings);
-       print_nextprev($r, $event, \%settings, \%defsettings);
-       print_selected($r, $event, \%settings, \%defsettings) if ($num_selected > 0);
-
-       my $toclose = 0;
-       my $lastupl = "";
-       
-       # Print out all thumbnails
-       if ($rot == 1) {
-               $r->print("    <form method=\"post\" action=\"/rotate\">\n");
-       
+       if ($fullscreen) {
+               $r->content_type("text/html; charset=utf-8");
+               Sesse::pr0n::Templates::print_template($r, "fullscreen-header", { title => "$name [$event]" });
                while (my $ref = $q->fetchrow_hashref()) {
-                       my $imgsz = "";
-                       my $takenby = $ref->{'takenby'};
-                       if (defined($ref->{'day'})) {
-                                $takenby .= ", " . $ref->{'day'};
-                       }
-
-                       if ($takenby ne $lastupl) {
-                               $lastupl = $takenby;
-                               Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
-                       }
-                       if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
-                               my $width = $ref->{'width'};
-                               my $height = $ref->{'height'};
-                                       
-                               ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
-                               $imgsz = " width=\"$width\" height=\"$height\"";
-                       }
-
-                       my $filename = $ref->{'filename'};
-                       my $uri = $filename;
-                       if (defined($xres) && defined($yres) && $xres != -1) {
-                               $uri = "${xres}x$yres/$infobox$filename";
-                       } elsif (defined($xres) && $xres == -1) {
-                               $uri = "original/$infobox$filename";
-                       }
-
-                       $r->print("    <p><a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
-                       $r->print("      90 <input type=\"checkbox\" name=\"rot-" .
-                               $ref->{'id'} . "-90\" />\n");
-                       $r->print("      180 <input type=\"checkbox\" name=\"rot-" .
-                               $ref->{'id'} . "-180\" />\n");
-                       $r->print("      270 <input type=\"checkbox\" name=\"rot-" .
-                               $ref->{'id'} . "-270\" />\n");
-                       $r->print("      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" .
-                               "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Del <input type=\"checkbox\" name=\"del-" . $ref->{'id'} . "\" /></p>\n");
+                       $r->print("        \"" . $ref->{'filename'} . "\",\n");
                }
-               $r->print("      <input type=\"submit\" value=\"Rotate\" />\n");
-               $r->print("    </form>\n");
-       } elsif ($sel == 1) {
-               $r->print("    <form method=\"post\" action=\"/select\">\n");
-               $r->print("      <input type=\"hidden\" name=\"event\" value=\"$event\" />\n");
-       
-               while (my $ref = $q->fetchrow_hashref()) {
-                       my $imgsz = "";
-                       my $takenby = $ref->{'takenby'};
-                       if (defined($ref->{'day'})) {
-                                $takenby .= ", " . $ref->{'day'};
-                       }
-
-                       if ($takenby ne $lastupl) {
-                               $lastupl = $takenby;
-                               Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
-                       }
-                       if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
-                               my $width = $ref->{'width'};
-                               my $height = $ref->{'height'};
-                                       
-                               ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
-                               $imgsz = " width=\"$width\" height=\"$height\"";
-                       }
-
-                       my $filename = $ref->{'filename'};
-                       my $uri = $filename;
-                       if (defined($xres) && defined($yres) && $xres != -1) {
-                               $uri = "${xres}x$yres/$infobox$filename";
-                       } elsif (defined($xres) && $xres == -1) {
-                               $uri = "original/$infobox$filename";
-                       }
-
-                       my $selected = $ref->{'selected'} ? ' checked="checked"' : '';
+               Sesse::pr0n::Templates::print_template($r, "fullscreen-footer", { vhost => $r->get_server_name, event => $event, start => $settings{'start'} - 1 });
+       } else {
+               Sesse::pr0n::Common::header($r, "$name [$event]");
+               Sesse::pr0n::Templates::print_template($r, "date", { date => $date });
 
-                       $r->print("    <p><a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
-                       $r->print("      <input type=\"checkbox\" name=\"sel-" .
-                               $ref->{'id'} . "\"$selected /></p>\n");
+               if (Sesse::pr0n::Overload::is_in_overload($r)) {
+                       Sesse::pr0n::Templates::print_template($r, "overloadmode");
                }
-               $r->print("      <input type=\"submit\" value=\"Select\" />\n");
-               $r->print("    </form>\n");
-       } else {
-               while (my $ref = $q->fetchrow_hashref()) {
-                       my $imgsz = "";
-                       my $takenby = $ref->{'takenby'};
-                       if (defined($ref->{'day'})) {
-                                $takenby .= ", " . $ref->{'day'};
-                       }
 
-                       if ($takenby ne $lastupl) {
-                               $r->print("    </p>\n\n") if ($lastupl ne "");
-                               $lastupl = $takenby;
-                               Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
-                               $r->print("    <p>\n");
+               print_thumbsize($r, $event, \%settings, \%defsettings);
+               print_viewres($r, $event, \%settings, \%defsettings);
+               print_pagelimit($r, $event, \%settings, \%defsettings);
+               print_infobox($r, $event, \%settings, \%defsettings);
+               print_nextprev($r, $event, \%settings, \%defsettings);
+               print_selected($r, $event, \%settings, \%defsettings) if ($num_selected > 0);
+
+               my $toclose = 0;
+               my $lastupl = "";
+               
+               # Print out all thumbnails
+               if ($rot == 1) {
+                       $r->print("    <form method=\"post\" action=\"/rotate\">\n");
+               
+                       while (my $ref = $q->fetchrow_hashref()) {
+                               my $imgsz = "";
+                               my $takenby = $ref->{'takenby'};
+                               if (defined($ref->{'day'})) {
+                                        $takenby .= ", " . $ref->{'day'};
+                               }
+
+                               if ($takenby ne $lastupl) {
+                                       $lastupl = $takenby;
+                                       Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
+                               }
+                               if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
+                                       my $width = $ref->{'width'};
+                                       my $height = $ref->{'height'};
+                                               
+                                       ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
+                                       $imgsz = " width=\"$width\" height=\"$height\"";
+                               }
+
+                               my $filename = $ref->{'filename'};
+                               my $uri = $filename;
+                               if (defined($xres) && defined($yres) && $xres != -1) {
+                                       $uri = "${xres}x$yres/$infobox$filename";
+                               } elsif (defined($xres) && $xres == -1) {
+                                       $uri = "original/$infobox$filename";
+                               }
+
+                               $r->print("    <p><a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
+                               $r->print("      90 <input type=\"checkbox\" name=\"rot-" .
+                                       $ref->{'id'} . "-90\" />\n");
+                               $r->print("      180 <input type=\"checkbox\" name=\"rot-" .
+                                       $ref->{'id'} . "-180\" />\n");
+                               $r->print("      270 <input type=\"checkbox\" name=\"rot-" .
+                                       $ref->{'id'} . "-270\" />\n");
+                               $r->print("      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" .
+                                       "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Del <input type=\"checkbox\" name=\"del-" . $ref->{'id'} . "\" /></p>\n");
                        }
-                       if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
-                               my $width = $ref->{'width'};
-                               my $height = $ref->{'height'};
-                                       
-                               ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
-                               $imgsz = " width=\"$width\" height=\"$height\"";
+                       $r->print("      <input type=\"submit\" value=\"Rotate\" />\n");
+                       $r->print("    </form>\n");
+               } elsif ($sel == 1) {
+                       $r->print("    <form method=\"post\" action=\"/select\">\n");
+                       $r->print("      <input type=\"hidden\" name=\"event\" value=\"$event\" />\n");
+               
+                       while (my $ref = $q->fetchrow_hashref()) {
+                               my $imgsz = "";
+                               my $takenby = $ref->{'takenby'};
+                               if (defined($ref->{'day'})) {
+                                        $takenby .= ", " . $ref->{'day'};
+                               }
+
+                               if ($takenby ne $lastupl) {
+                                       $lastupl = $takenby;
+                                       Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
+                               }
+                               if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
+                                       my $width = $ref->{'width'};
+                                       my $height = $ref->{'height'};
+                                               
+                                       ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
+                                       $imgsz = " width=\"$width\" height=\"$height\"";
+                               }
+
+                               my $filename = $ref->{'filename'};
+                               my $uri = $filename;
+                               if (defined($xres) && defined($yres) && $xres != -1) {
+                                       $uri = "${xres}x$yres/$infobox$filename";
+                               } elsif (defined($xres) && $xres == -1) {
+                                       $uri = "original/$infobox$filename";
+                               }
+
+                               my $selected = $ref->{'selected'} ? ' checked="checked"' : '';
+
+                               $r->print("    <p><a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
+                               $r->print("      <input type=\"checkbox\" name=\"sel-" .
+                                       $ref->{'id'} . "\"$selected /></p>\n");
                        }
-
-                       my $filename = $ref->{'filename'};
-                       my $uri = $filename;
-                       if (defined($xres) && defined($yres) && $xres != -1) {
-                               $uri = "${xres}x$yres/$infobox$filename";
-                       } elsif (defined($xres) && $xres == -1) {
-                               $uri = "original/$infobox$filename";
+                       $r->print("      <input type=\"submit\" value=\"Select\" />\n");
+                       $r->print("    </form>\n");
+               } else {
+                       while (my $ref = $q->fetchrow_hashref()) {
+                               my $imgsz = "";
+                               my $takenby = $ref->{'takenby'};
+                               if (defined($ref->{'day'})) {
+                                        $takenby .= ", " . $ref->{'day'};
+                               }
+
+                               if ($takenby ne $lastupl) {
+                                       $r->print("    </p>\n\n") if ($lastupl ne "");
+                                       $lastupl = $takenby;
+                                       Sesse::pr0n::Templates::print_template($r, "submittedby", { author => $lastupl });
+                                       $r->print("    <p>\n");
+                               }
+                               if ($ref->{'width'} != -1 && $ref->{'height'} != -1) {
+                                       my $width = $ref->{'width'};
+                                       my $height = $ref->{'height'};
+                                               
+                                       ($width, $height) = Sesse::pr0n::Common::scale_aspect($width, $height, $thumbxres, $thumbyres);
+                                       $imgsz = " width=\"$width\" height=\"$height\"";
+                               }
+
+                               my $filename = $ref->{'filename'};
+                               my $uri = $filename;
+                               if (defined($xres) && defined($yres) && $xres != -1) {
+                                       $uri = "${xres}x$yres/$infobox$filename";
+                               } elsif (defined($xres) && $xres == -1) {
+                                       $uri = "original/$infobox$filename";
+                               }
+                               
+                               $r->print("      <a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
                        }
-                       
-                       $r->print("      <a href=\"$uri\"><img src=\"${thumbxres}x${thumbyres}/$filename\" alt=\"\"$imgsz /></a>\n");
+                       $r->print("    </p>\n");
                }
-               $r->print("    </p>\n");
-       }
 
-       print_nextprev($r, $event, \%settings, \%defsettings);
-       Sesse::pr0n::Common::footer($r);
+               print_nextprev($r, $event, \%settings, \%defsettings);
+               Sesse::pr0n::Common::footer($r);
+       }
 
        return Apache2::Const::OK;
 }
index 79bd3c8fc3028cbf2fab66a7e7f3b86f4c8bd901..487a01a1398827cfb86e1e49ecf567c962ff00df 100644 (file)
@@ -22,6 +22,10 @@ sub handler {
                 $uri eq '/skoyen.css' ||
                 $uri eq '/blah.png' ||
                 $uri eq '/faq.html' ||
+                $uri eq '/pr0n-fullscreen.css' ||
+                $uri eq '/pr0n-fullscreen.js' ||
+                $uri eq '/previous.png' ||
+                $uri eq '/next.png' ||
                 $uri =~ m#^/usage/([a-zA-Z0-9_.]+)$#) {
                $uri =~ s#^/##;
                $r->content_type(Sesse::pr0n::Common::get_mimetype_from_filename($uri));
diff --git a/pr0n-fullscreen.css b/pr0n-fullscreen.css
new file mode 100644 (file)
index 0000000..cde61ee
--- /dev/null
@@ -0,0 +1,45 @@
+body {
+       background-color: black;
+       color: white;
+       margin: 0;
+       padding: 0;
+}
+.container {
+       text-align: center;
+/*     border: 1px solid red; */
+}
+img {
+       vertical-align: middle;
+}
+
+#previous {
+       position: absolute;
+       bottom: 0px;
+       left: 0px;
+       z-index: 1;
+}
+#next {
+       position: absolute;
+       bottom: 0px;
+       right: 0px;
+       z-index: 1;
+}
+#preload {
+       position: absolute;
+       left: -2px;
+       top: -2px;
+       width: 1px;
+       height: 1px;
+}
+
+/* IE5/6 madness */
+html
+{
+       overflow: hidden;
+}
+
+body
+{
+       height: 100%;
+       overflow: auto;
+}
diff --git a/pr0n-fullscreen.js b/pr0n-fullscreen.js
new file mode 100644 (file)
index 0000000..f087a8f
--- /dev/null
@@ -0,0 +1,219 @@
+function find_width()
+{
+       if (typeof(window.innerWidth) == 'number') {
+               // non-IE
+               return [window.innerWidth, window.innerHeight];
+       } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
+               // IE 6+ in 'standards compliant mode'
+               return [document.documentElement.clientWidth, document.documentElement.clientHeight - 42];
+       } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
+               // IE 4-compatible
+               return [document.body.clientWidth, document.body.clientHeight];
+       }
+       return (null,null);
+}
+
+/*
+ * pr0n can resize to any size we'd like, but we're much more likely
+ * to have this set of fixed-resolution screens cached, so to increase
+ * performance, we round down to the closest fit and use that.
+ */
+function reduce_to_fixed_width(size)
+{
+       var fixed_sizes = [
+               [ 1280, 960 ],
+               [ 1024, 768 ],
+               [ 800, 600 ],
+               [ 640, 480 ],
+               [ 512, 384 ],
+               [ 320, 256 ],
+               [ 240, 192 ],
+               [ 120, 96 ],
+               [ 80, 64 ]
+       ];
+       for (i = 0; i < fixed_sizes.length; ++i) {
+               if (size[0] >= fixed_sizes[i][0] && size[1] >= fixed_sizes[i][1])
+                       return fixed_sizes[i];
+       }
+       return [ 80, 64 ];
+}
+       
+function display_image(width, height, evt, filename, element_id)
+{
+       var url = "http://" + global_vhost + "/" + evt + "/" + width + "x" + height + "/" + filename;
+       var img = document.getElementById(element_id);
+       if (img != null) {
+               img.src = "";
+               img.parentNode.removeChild(img);
+       }
+
+       img = document.createElement("img");
+       img.id = element_id;
+       img.alt = "";
+
+       if (img.src != url) {
+               img.src = url;
+       }
+       
+       var main = document.getElementById("main");
+       main.appendChild(img);
+
+       return img;
+}
+
+function prepare_preload(img, width, height, evt, filename)
+{
+       // cancel any pending preload
+       var preload = document.getElementById("preload");
+       if (preload != null) {
+               preload.src = "";
+               preload.parentNode.removeChild(preload);
+       }
+               
+//     img.onload = function() { display_image(width, height, evt, filename, "preload"); }
+       img.onload = "display_image(" + width + "," + height + ",\"" + evt + "\",\"" + filename + "\",\"preload\");";
+}
+
+function relayout()
+{
+       var size = find_width();
+       var adjusted_size = reduce_to_fixed_width(size);
+
+       var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
+       if (can_go_next()) {
+               prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num + 1]);
+       }
+       
+       // center the image on-screen
+       var main = document.getElementById("main");
+       main.style.position = "absolute";
+       main.style.left = (size[0] - adjusted_size[0]) / 2 + "px";
+       main.style.top = (size[1] - adjusted_size[1]) / 2 + "px"; 
+       main.style.width = adjusted_size[0] + "px";
+       main.style.height = adjusted_size[1] + "px";
+       main.style.lineHeight = adjusted_size[1] + "px"; 
+       if (document.all) {  // IE-specific
+               main.style.fontSize = adjusted_size[1] + "px";
+       }
+
+       set_opacity("previous", can_go_previous() ? 0.7 : 0.1);
+       set_opacity("next", can_go_next() ? 0.7 : 0.1);
+}
+
+function set_opacity(id, amount)
+{
+       var elem = document.getElementById(id);
+       if (typeof(elem.style.opacity) != 'undefined') {            // W3C
+               elem.style.opacity = amount;
+       } else if (typeof(elem.style.mozOpacity) != 'undefined') {  // older Mozilla
+               elem.style.mozOpacity = amount;
+       } else if (typeof(elem.style.filter) != 'undefined') {      // IE
+               if (elem.style.filter.indexOf("alpha") == -1) {
+                       // add an alpha filter if there isn't one already
+                       if (elem.style.filter) {
+                               elem.style.filter += " ";
+                       } else {
+                               elem.style.filter = "";
+                       }
+                       elem.style.filter += "alpha(opacity=" + (amount*100.0) + ")";
+               } else {
+                       elem.filters.alpha.opacity = (amount * 100.0);
+               }
+       } else {                             // no alpha support
+               if (amount > 0.5) {
+                       elem.style.visibility = "visible";
+                       elem.style.zorder = 1;
+               } else {
+                       elem.style.visibility = "hidden";
+               }
+       }
+}
+
+function can_go_previous()
+{
+       return (global_image_num > 0);
+}
+
+function go_previous()
+{
+       if (!can_go_previous())
+               return;
+
+       --global_image_num;
+
+       var adjusted_size = reduce_to_fixed_width(find_width());
+
+       var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
+       if (can_go_previous()) {
+               set_opacity("previous", 0.7);
+               prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num - 1]);
+       } else {
+               set_opacity("previous", 0.1);
+       }
+       set_opacity("next", can_go_next() ? 0.7 : 0.1);
+}
+
+function can_go_next()
+{
+       return (global_image_num < global_image_list.length - 1);
+}
+
+function go_next()
+{
+       if (!can_go_next())
+               return;
+
+       ++global_image_num;
+
+       var adjusted_size = reduce_to_fixed_width(find_width());
+
+       var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
+       if (can_go_next()) {
+               set_opacity("next", 0.7);
+               prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num + 1]);
+       } else {
+               set_opacity("next", 0.1);
+       }
+       set_opacity("previous", can_go_previous() ? 0.7 : 0.1);
+}
+
+function key_down(which)
+{
+       if (which == 39) {   // right
+               if (can_go_next()) {
+                       set_opacity("next", 0.99);
+               }
+       } else if (which == 37) {   // left
+               if (can_go_previous()) {
+                       set_opacity("previous", 0.99);
+               }
+       }
+}
+
+function key_up(which) {
+       if (which == 39) {   // right
+               if (can_go_next()) {
+                       set_opacity("next", 0.7);
+                       go_next();
+               }
+       } else if (which == 37) {   // left
+               if (can_go_previous()) {
+                       set_opacity("previous", 0.7);
+                       go_previous();
+               }
+       }
+}
+
+// enable the horrible horrible IE PNG hack
+function ie_png_hack()
+{
+       var vstr = navigator.appVersion.split("MSIE");
+       var v = parseFloat(vstr[1]);
+       if (v >= 5.5 && v < 7.0 && document.body.filters) {
+               var next = document.getElementById("next");
+               next.outerHTML = "<span id=\"next\" style=\"display: inline-block; position: absolute; bottom: 0px; right: 0px; width: 50px; height: 50px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + next.src + "')\" onmousedown=\"if (can_go_next()) set_opacity('next', 1.0)\" onmouseup=\"if (can_go_next()) { set_opacity('next', 0.7); go_next(); }\" onmouseout=\"if (can_go_next()) { set_opacity('next', 0.7); }\" />";
+               
+               var previous = document.getElementById("previous");
+               previous.outerHTML = "<span id=\"previous\" style=\"display: inline-block; position: absolute; bottom: 0px; right: 0px; width: 50px; height: 50px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + previous.src + "')\" onmousedown=\"if (can_go_previous()) set_opacity('previous', 1.0)\" onmouseup=\"if (can_go_previous()) { set_opacity('previous', 0.7); go_previous(); }\" onmouseout=\"if (can_go_previous()) { set_opacity('previous', 0.7); }\" />";
+       }
+}
diff --git a/previous.png b/previous.png
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