diff --git a/app/assets/javascripts/orbitdesktop.js b/app/assets/javascripts/orbitdesktop.js
index 2a50c342..f766802f 100755
--- a/app/assets/javascripts/orbitdesktop.js
+++ b/app/assets/javascripts/orbitdesktop.js
@@ -334,6 +334,55 @@ var orbitDesktop = function(dom){
       })
     }
   }
+  this.insert_new_column = function(index){
+    var column_container = $("div[container=true] div.overview"),layout = column_container.attr("content-layout"),base_width = parseInt(column_container.attr("base-width")),column;
+    var i = (index == 0? 0 : index-1);
+    var previous_column = column_container.find(".column").eq(i);
+    if(previous_column.length == 0)return false;
+    switch(layout){
+      case "datalist":
+        column = $("<div class='column type_column' style='width:"+base_width+"px'></div");
+      break;
+      case "column":
+        column = $("<div class='column type_column' style='width:"+base_width+"px'></div");
+      break;
+      default:
+        return false;
+      break;
+    }
+    if(index == 0){
+      column.insertBefore(previous_column)
+    }else{
+      column.insertAfter(previous_column);
+    }
+    var total_columns = column_container.find(".column").length;
+    o.tinyscrollbar_ext({
+      main : ".tinycanvas",
+      fill : base_width * total_columns
+    })
+    return column;
+  }
+
+  this.remove_column = function(index){
+    var column_container = $("div[container=true] div.overview"),layout = column_container.attr("content-layout"),column = column_container.find(".column").eq(index),base_width = parseInt(column_container.attr("base-width"));
+    if(column.length == 0)return false;
+    switch(layout){
+      case "datalist":
+      case "column":
+      break;
+      default:
+        return false;
+      break;
+    }
+    column.remove();
+    var total_columns = column_container.find(".column").length;
+    o.tinyscrollbar_ext({
+      main : ".tinycanvas",
+      fill : base_width * total_columns
+    })
+    return column;
+  }
+
   this.menu_item = function(dom,customload,submenuitem){
     if(!customload)customload=false;
     var target = dom.attr("id");
@@ -790,9 +839,6 @@ var orbitDesktop = function(dom){
         })
         return false;
       })
-      o.tinyscrollbar_ext({
-        main: '.tinycanvas'
-      })
     }
     var loadApps = function(){ //this load apps for sorting and searching 
       $.getJSON("/desktop/getapplist",{desktopid:o.desktopId},function(appss){
@@ -927,17 +973,7 @@ var orbitDesktop = function(dom){
 
     this.initializeSettings.sections = function(){ // this load section page in setting page 
       var bindHandlers = function(){ // binding handlers in section page
-        $('.tinycanvas').each(function(){
-          var h = $(this).parent().height(),
-          sh = $(this).siblings('.s_tab').height();
-        o.tinyscrollbar_ext({
-          main : $(this),
-          height : h-sh-24,
-        },{
-          axis : "y"
-        })
-        });
-
+        
         $("a#name_save_btn").click(function(){
           var desktopnm = new Array;
           $("#desktop_names input").each(function(){
@@ -980,19 +1016,6 @@ var orbitDesktop = function(dom){
             }
           });
         });
-
-        $('.tinycanvas').each(function(){
-          var h = $(this).parent().height(),
-          sh = $(this).siblings('.s_tab').height();
-
-        o.tinyscrollbar_ext({
-          main: $(this),
-          height: h-sh-24
-        },{
-          axis: 'y'
-        })
-        });
-
         o.single_select();
         o.simple_tab();
 
@@ -1137,9 +1160,6 @@ var orbitDesktop = function(dom){
 
         $('#connection_setting').width(conlist_w);
 
-        o.tinyscrollbar_ext({
-          main: '.tinycanvas'
-        })
 
       }
       var saveaccount = function(usernm,pwd,type,what){