diff --git a/css/animate.css b/css/animate.css
new file mode 100644
index 0000000..76810e6
--- /dev/null
+++ b/css/animate.css
@@ -0,0 +1,68 @@
+.animated {
+  -webkit-animation-duration: .7s;
+  animation-duration: .7s;
+  -webkit-animation-fill-mode: both;
+  animation-fill-mode: both;
+}
+
+@-webkit-keyframes slideInDown {
+  from {
+    -webkit-transform: translate3d(0, -100%, 0);
+    transform: translate3d(0, -100%, 0);
+    visibility: visible;
+  }
+
+  100% {
+    -webkit-transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
+  }
+}
+
+@keyframes slideInDown {
+  from {
+    -webkit-transform: translate3d(0, -100%, 0);
+    transform: translate3d(0, -100%, 0);
+    visibility: visible;
+  }
+
+  100% {
+    -webkit-transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
+  }
+}
+
+.slideInDown {
+  -webkit-animation-name: slideInDown;
+  animation-name: slideInDown;
+}
+
+@-webkit-keyframes slideOutUp {
+  from {
+    -webkit-transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
+  }
+
+  100% {
+    visibility: hidden;
+    -webkit-transform: translate3d(0, -100%, 0);
+    transform: translate3d(0, -100%, 0);
+  }
+}
+
+@keyframes slideOutUp {
+  from {
+    -webkit-transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
+  }
+
+  100% {
+    visibility: hidden;
+    -webkit-transform: translate3d(0, -100%, 0);
+    transform: translate3d(0, -100%, 0);
+  }
+}
+
+.slideOutUp {
+  -webkit-animation-name: slideOutUp;
+  animation-name: slideOutUp;
+}
diff --git a/css/software-catalog-page.css b/css/software-catalog-page.css
index dde1754..e129b0f 100644
--- a/css/software-catalog-page.css
+++ b/css/software-catalog-page.css
@@ -98,6 +98,10 @@
   text-align: right;
 }
 
+.action-search-software_infos #filter-option-catalog-close {  
+  padding: 7px 7px 17px 10px;
+  display: none;
+}
 .action-search-software_infos #filter-option-catalog-software:hover {
   background-color: #c7c7c7;
 }
@@ -112,7 +116,10 @@
 }
 
 .action-search-software_infos #filter-catalog-software #filter-categories-option {
-  border:none;
+  border: none;
+  position: relative;
+  display: none;
+  overflow: hidden;
 }
 
 .action-search-software_infos #filter-catalog-software #filter-categories-catalog h4 {
diff --git a/style.css b/style.css
index 659822b..c2e317e 100644
--- a/style.css
+++ b/style.css
@@ -21,7 +21,7 @@
 @import url(css/use-report.css);
 @import url(css/tooltips.css);
 */
-
+@import url(css/animate.css);
 @import url(font-awesome.min.css);
 /*@import url(http://fonts.googleapis.com/css?family=Open+Sans);*/
 
@@ -207,3 +207,5 @@ img {
 iframe {
     border-width: 0; border-style:none;
 }
+
+
diff --git a/theme.js b/theme.js
index b592ffb..04e3a02 100644
--- a/theme.js
+++ b/theme.js
@@ -83,16 +83,6 @@ $('#link-buscar').click(function(e) {
     //finality.stop().animate({"top" : "100%"}, TRANSITION_TIME);
   }
 
-  function set_events() {
-    // Fade css
-    $('.software-block-finality').css('opacity', 0);
-    $('.software-block-finality').css('top', 0);
-    // End Fade CSS
-
-    $(".software-block").mouseover(show_finality);
-    $(".software-block").mouseout(hide_finality);
-  }
-
   function move_article_buttons(){
     var article_actions = $('#article-actions').clone();
     var report = $('.report-abuse-action').remove();
@@ -131,7 +121,43 @@ $('#link-buscar').click(function(e) {
       //$('<div class="notice-item"></div>').wrap($(this).find( '.image', '.title', '.lead', '.read_more'));
     });
 
+  }
 
+  //toggle filter options in catalog page
+  function setFilterCategoriesOptionClass() {
+    var filterOptions = $("#filter-categories-option");
+    filterOptions.addClass("animated slideInDown");
+  }
+
+  function toggleFilterOptions(){
+    var filterOptions = $("#filter-categories-option");
+    var showOptions = $("#filter-option-catalog-software");
+    var hideOptions = $("#filter-option-catalog-close");
+    if(filterOptions.is(":visible")){
+      filterOptions.slideUp(function() {
+         showOptions.show();
+         hideOptions.hide();
+      });
+    }
+    else {
+      filterOptions.slideDown();
+      showOptions.hide();
+      hideOptions.show();
+    }
+  }
+
+  function setEvents(){
+    // Fade css
+    $('.software-block-finality').css('opacity', 0);
+    $('.software-block-finality').css('top', 0);
+    // End Fade CSS
+    $(".software-block").mouseover(show_finality);
+    $(".software-block").mouseout(hide_finality);
+
+    var showOptions = $("#filter-option-catalog-software");
+    var hideOptions = $("#filter-option-catalog-close");
+    showOptions.click(toggleFilterOptions);
+    hideOptions.click(toggleFilterOptions);
   }
 
   /* Finds all uploaded files from manuals page and sets its names on the right format */
@@ -217,6 +243,7 @@ $('#link-buscar').click(function(e) {
   }
 
   $(document).ready(function(){
+
     add_top_tooltips();
     set_events();
     move_article_buttons();
@@ -226,5 +253,11 @@ $('#link-buscar').click(function(e) {
     set_tooltip_content();
     set_arrow_direction();
     set_use_report_content();
+
+    setEvents(); //FIX-ME
+    move_article_buttons();
+    add_link_to_article_div();
+    insert_notice_div();
+
     });
 })(jQuery);
--
libgit2 0.21.2