diff --git a/css/main.css b/css/main.css
index 03dc56b..7ec1359 100644
--- a/css/main.css
+++ b/css/main.css
@@ -71,6 +71,27 @@ body {
   border-color: gray;
 }
 
+#money {
+  position: fixed;
+  font-family: 'Electrolize', sans-serif;
+  font-size: 22px;
+  width: 1200;
+  height: 42px;
+  line-height: 42px;
+  text-align: center;
+  background-image: url(../images/moneybg.png);
+}
+
+body {
+  -webkit-touch-callout: none; /* iOS Safari */
+    -webkit-user-select: none; /* Safari */
+     -khtml-user-select: none; /* Konqueror HTML */
+       -moz-user-select: none; /* Firefox */
+        -ms-user-select: none; /* Internet Explorer/Edge */
+            user-select: none; /* Non-prefixed version, currently
+                                  supported by Chrome and Opera */
+}
+
 .buildtile {
   width: 48;
   height: 48;
diff --git a/images/items/money.png b/images/items/money.png
new file mode 100644
index 0000000..7e7365f
Binary files /dev/null and b/images/items/money.png differ
diff --git a/images/moneybg.png b/images/moneybg.png
new file mode 100644
index 0000000..8b7eddb
Binary files /dev/null and b/images/moneybg.png differ
diff --git a/index.html b/index.html
index 8eae7bd..17bab15 100644
--- a/index.html
+++ b/index.html
@@ -32,9 +32,11 @@
   </div>
   <div id="tooltip">
     <span>
-      Example
     </span>
   </div>
+  <span id="money">
+    ??? Dollar
+  </span>
 </body>
 
 </html>
diff --git a/js/baseclasses.js b/js/baseclasses.js
index 47b7517..899a45c 100644
--- a/js/baseclasses.js
+++ b/js/baseclasses.js
@@ -35,6 +35,32 @@ class Tile {
     }
   }
 
+  pay() {
+    var items = 0
+    for (var i = 0; i < this.cost.length; i++) {
+      if (this.cost[i].id == 0) {
+        if (this.cost[i].count <= money) {
+          items++
+        }
+      } else {
+        if (inventory.countOf(this.cost[i].id) >= this.cost[i].count) {
+          items++
+        }
+      }
+    }
+    if (items == this.cost.length) {
+      for (var i = 0; i < this.cost.length; i++) {
+        if (this.cost[i].id == 0) {
+          money -= this.cost[i].count
+        } else {
+          inventory.take(this.cost[i].id, this.cost[i].count, null)
+        }
+      }
+      return true
+    }
+    return false
+  }
+
   unloadImages() {
     this.images = {
       "0": [],
@@ -99,7 +125,8 @@ class Inventory {
       for (var j = 0; j < count; j++) {
         for (var i = 0; i < this.items.length; i++) {
           if (this.items[i].id == id) {
-            factory.deleteItem(this.items[i])
+            if (factory != null)
+              factory.deleteItem(this.items[i])
             this.items.splice(i, 1)
             break;
           }
diff --git a/js/game.js b/js/game.js
index be0fea5..7357a34 100644
--- a/js/game.js
+++ b/js/game.js
@@ -1,5 +1,6 @@
 var factorys = []
 var inventory = {}
+var money = 100
 
 var items = []
 
@@ -163,6 +164,7 @@ function render() {
   } else {
     drawInventory(inventory, lang["player"])
   }
+  $('#money').text(money + " " + lang.items[0])
 }
 
 function getItemFormId(id) {
@@ -259,11 +261,26 @@ function drawInfoBar() {
     $('#infoDesc h1').text("")
     $('#infoDesc p').text("")
   }
-  if(selectedTile.maxwork!=0){
+  if (selectedTile.maxwork != 0 && mode != "selectbuilding" && mode != "building") {
     $('#infoDesc p').css("height", 154)
     infoCtx.fillStyle = "green";
-    infoCtx.fillRect(0, 228, 432*(selectedTile.currentwork/selectedTile.maxwork), 12)
-  }else{
+    infoCtx.fillRect(0, 228, 432 * (selectedTile.currentwork / selectedTile.maxwork), 12)
+  } else {
     $('#infoDesc p').css("height", 166)
   }
+  if (mode == "selectbuilding" || mode == "building") {
+    if (selectedTile != 0) {
+      infoCtx.textAlign = "center"
+      infoCtx.font = "18px Electrolize"
+      infoCtx.fillStyle = "black";
+      infoCtx.fillText(lang.cost, 336, 66)
+      infoCtx.textAlign = "start"
+      for (var i = 0; i < selectedTile.cost.length; i++) {
+        if (selectedTile.cost[i].id == 0)
+          infoCtx.fillText(selectedTile.cost[i].count + " " + lang.items[selectedTile.cost[i].id], 246, 86 + 20 * i)
+        else
+          infoCtx.fillText(selectedTile.cost[i].count + "x " + lang.items[selectedTile.cost[i].id], 246, 86 + 20 * i)
+      }
+    }
+  }
 }
diff --git a/js/items.json b/js/items.json
index f74c481..a2e1603 100644
--- a/js/items.json
+++ b/js/items.json
@@ -1,7 +1,7 @@
 {
   "items": [{
     "id": 0,
-    "name": "coal"
+    "name": "money"
   },{
     "id": 1,
     "name": "log"
diff --git a/js/tiles.js b/js/tiles.js
index c24676e..8b6bf60 100644
--- a/js/tiles.js
+++ b/js/tiles.js
@@ -7,6 +7,10 @@ class Conveyorbelt extends Tile {
     super(x, y, factory)
     this.name = "conveyorbelt"
     this.hasNoInventory = true
+    this.cost = [{
+      "id": 0,
+      "count": 20
+    }]
     this.texture = {
       "0": ["conveyorbelt00", "conveyorbelt01", "conveyorbelt02", "conveyorbelt03", "conveyorbelt04", "conveyorbelt05", "conveyorbelt06"],
       "1": []
@@ -23,6 +27,10 @@ class Treefarm extends Tile {
     this.currentwork = 0
     this.name = "treefarm"
     this.hasNoInventory = true
+    this.cost = [{
+      "id": 0,
+      "count": 30
+    }]
     this.texture = {
       "0": [],
       "1": ["treefarm10", "treefarm10", "treefarm10", "treefarm11", "treefarm11", "treefarm11", "treefarm12", "treefarm12", "treefarm12", "treefarm13", "treefarm13", "treefarm13", "treefarm14", "treefarm14", "treefarm14", "treefarm15", "treefarm15", "treefarm15"]
@@ -47,6 +55,15 @@ class Saw extends Tile {
     this.maxwork = 96
     this.currentwork = 0
     this.name = "saw"
+    this.cost = [{
+        "id": 0,
+        "count": 50
+      },
+      {
+        "id": 1,
+        "count": 50
+      }
+    ]
     this.texture = {
       "0": [],
       "1": ["saw10", "saw10", "saw10", "saw10", "saw11", "saw11", "saw11", "saw11", "saw12", "saw12", "saw12", "saw12", "saw13", "saw13", "saw13", "saw13"]
@@ -59,7 +76,7 @@ class Saw extends Tile {
     var requieredCount = 5
     if (this.input.countOf(1) >= requieredCount) {
       if (this.currentwork == 96) {
-        this.input.take(1, requieredCount,this.factory)
+        this.input.take(1, requieredCount, this.factory)
         var item = new Item(2, this.x * 48, this.y * 48)
         this.factory.items.push(item)
         item.setDFromDirection(this.direction)
@@ -79,6 +96,10 @@ class Collector extends Tile {
     super(x, y, factory)
     this.name = "collector"
     this.hasNoInventory = true
+    this.cost = [{
+      "id": 0,
+      "count": 50
+    }]
     this.texture = {
       "0": [],
       "1": ["collector10"]
diff --git a/js/userinterface.js b/js/userinterface.js
index 08bf12c..e270405 100644
--- a/js/userinterface.js
+++ b/js/userinterface.js
@@ -27,6 +27,8 @@ function style() {
   $('#infoDesc').css('margin-left', infoMarginLeft + 5)
   $('#itemcount').css('margin-top', itemCountMarginTop)
   $('#itemcount').css('margin-left', screenMarginLeft)
+  $('#money').css('margin-top', itemCountMarginTop - 42)
+  $('#money').css('margin-left', screenMarginLeft + 3)
   screenleftpos = screenMarginLeft
   screentoppos = screenMarginTop
   infoleftpos = infoMarginLeft
@@ -128,7 +130,8 @@ function onDocumentMouseMove(event) {
   }
   if (mousedown && mode == "build") {
     if (factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] == 0) {
-      factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] = new toBuild(cursorScreenX, cursorScreenY, factorys[currentFactory])
+      if (new toBuild().pay())
+        factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] = new toBuild(cursorScreenX, cursorScreenY, factorys[currentFactory])
     }
   }
 }
@@ -253,7 +256,8 @@ function buildEvents() {
     }
     if (mode == "build") {
       if (factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] == 0) {
-        factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] = new toBuild(cursorScreenX, cursorScreenY, factorys[currentFactory])
+        if (new toBuild().pay())
+          factorys[currentFactory].tiles[cursorScreenX][cursorScreenY] = new toBuild(cursorScreenX, cursorScreenY, factorys[currentFactory])
       }
     }
     if ((mode == "none") && isCursorInScreen) {
diff --git a/lang/en.json b/lang/en.json
index ad7c71c..4986b61 100644
--- a/lang/en.json
+++ b/lang/en.json
@@ -17,9 +17,10 @@
       "description": "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
     }
   },
-  "items": ["Coal", "Log", "Planks"],
+  "items": ["Dollars", "Log", "Planks"],
   "more": "show more...",
   "inventory": "Inventory",
   "player": "Player",
-  "infotooltips": ["Build", "Move", "Rotate", "Delete!", "", "Upgrade", "Information", "", "Go To Space!!"]
+  "infotooltips": ["Build", "Move", "Rotate", "Delete!", "Upgrade", "Information", "Go To Space!!", "", ""],
+  "cost": "Cost"
 }