diff --git a/composer.json b/composer.json
index 7fbcfde..728025e 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,6 @@
         }
     ],
     "require": {
-        //PHP7.1
         "krutush/template": "dev-master"
     },
     "autoload": {
diff --git a/src/Element.php b/src/Element.php
index b156e6e..c946c26 100644
--- a/src/Element.php
+++ b/src/Element.php
@@ -9,14 +9,19 @@ class Element{
         $this->data['name'] = $name;
     }
 
+    public function rename(string $name): self{
+        $this->data['name'] = $name;
+        return $this;
+    } 
+
     public function name() : string{ return $this->data['name']; }
 
-    public function required(bool $value = true) : Element{
+    public function required(bool $value = true) : self{
         $this->data['required'] = $value;
         return $this;
     }
 
-    public function value(string $value) : Element{
+    public function value(string $value) : self{
         $this->data['value'] = $value;
         return $this;
     }
@@ -25,7 +30,7 @@ class Element{
         return $this->data['value'];
     }
 
-    public function error(bool $value = true) : Element{
+    public function error(bool $value = true) : self{
         $this->data['error'] = $value;
         return $this;
     }
diff --git a/src/Form.php b/src/Form.php
index 0aa6a87..4f87808 100644
--- a/src/Form.php
+++ b/src/Form.php
@@ -58,7 +58,29 @@ class Form {
             $this->method = $method;
             $this->url = $url;
         }
-        return '<form method="'.$method.'" '.(isset($url) ? 'action="'.$url.'" ' : '').' '.$more.'>';
+        $html = '<form method="'.$method.'" '.(isset($url) ? 'action="'.$url.'" ' : '').$more.'>';
+        $html .= "
+<script type=\"text/javascript\">
+function SelectOther(source, other){
+    if(source.tagName == 'SELECT' && source.value == other){
+        source.style.display = 'none';
+        source.disabled = true;
+        var input = document.getElementsByName(source.name)[1];
+        input.style.display = '';
+        input.disabled = false;
+        input.value = source.value;
+    }else if(source.tagName == 'INPUT' && source.value.length == 0){
+        source.style.display = 'none';
+        source.disabled = true;
+        var select = document.getElementsByName(source.name)[0];
+        select.style.display = '';
+        select.disabled = false;
+        select.value = '';
+    }
+}
+</script>
+";
+        return $html;
     }
 
     public function end(string $more = '') : string{
@@ -80,7 +102,10 @@ class Form {
         return '<input type="submit" '.(isset($name) ? 'value="'.$name.'" ' : '').$more.'>';
     }
 
-    function input(string $name) : Element{
+    function input(string $name, bool $add = true) : Element{
+        if($add == false)
+            return new Input($name);
+
         if($this->set == true){
             $input = $this->get($name);
             if(isset($input))
@@ -91,7 +116,9 @@ class Form {
         return $input;
     }
 
-    function select(string $name) : Element{
+    function select(string $name, bool $add = true) : Element{
+        if($add == false)
+            return new Select($name);
         if($this->set == true){
             $input = $this->get($name);
             if(isset($input))
@@ -113,7 +140,7 @@ class Form {
         return $input;
     }
 
-    public function add(Element $thing) : void{
+    public function add(Element $thing){
         if($this->set == false)
             $this->elements[] = $thing;
     }
diff --git a/src/Input.php b/src/Input.php
index 7aee67d..f65c6c8 100644
--- a/src/Input.php
+++ b/src/Input.php
@@ -21,6 +21,13 @@ class Input extends Element{
         return $this;
     }
 
+    public function checkbox(): Input{
+        $this->data['type'] = 'checkbox';
+        $this->data['checkbox'] = true;
+        $this->data['value'] = $this->data['name'];
+        return $this;
+    }
+
     public function minlength(int $value) : Input{
         $this->data['minlength'] = $value;
         return $this;
@@ -96,7 +103,6 @@ class Input extends Element{
         (isset($this->data['type']) ? 'type="'.$this->data['type'].'" ' : '').
         (isset($this->data['title']) ? 'title="'.$this->data['title'].'" ' : '').
         (isset($this->data['pattern']) ? 'pattern="'.$this->data['pattern'].'" ' : '').
-        (isset($this->data['pattern']) ? 'pattern="'.$this->data['pattern'].'" ' : '').
         (isset($this->data['minlength']) ? 'minlength="'.$this->data['minlength'].'" ' : '').
         (isset($this->data['maxlength']) ? 'maxlength="'.$this->data['maxlength'].'" ' : '').
         (isset($this->data['required']) && $this->data['required'] == true ? 'required ' : '').
diff --git a/src/Select.php b/src/Select.php
index d64e3d2..5d8ba84 100644
--- a/src/Select.php
+++ b/src/Select.php
@@ -24,6 +24,15 @@ class Select extends Element{
         return $this;
     }
 
+    public function other(Input $input, string $text, string $more = ''): Select{
+        $input->rename($this->name());
+        $this->data['other'] = $input;
+        $this->data['other.text'] = $text;
+        $this->data['other.more'] = $more;
+        return $this;
+    }
+
+
     public function valid(mixed $data)/*: bool|string*/{
         $parent = parent::valid($data);
         if($parent !== true || !isset($data))
@@ -33,16 +42,50 @@ class Select extends Element{
             if($option['value'] == $data)
                 return $parent;
         }
+        if(isset($this->data['other'])){
+            $input = $this->data['other'];
+            return $input->valid($data);
+        }
+
         return 'incorrect';
     }
 
-    public function html(string $more = '') : string{
-        $html = '<select name="'.$this->data['name'].'" '.
-        (isset($this->data['required']) && $this->data['required'] == true ? 'required ' : '').
-        $more.'><option disabled '.(isset($this->data['value']) ? 'selected ' : '').'value style="display:none"> --- </option>';
+    public function html(string $more = ''): string{
+        $selected = false;
+        $options = '<option disabled '.(isset($this->data['value']) ? '' : 'selected ').'value style="display:none"> --- </option>';
         foreach($this->data['options'] as $option){
-            $html .= '<option value="'.$option['value'].'" '.((isset($this->data['value']) && $this->data['value'] == $option['value']) ? 'selected="selected" ' : '' ).$option['more'].'>'.$option['text'].'</option>';
+            $options .= '<option value="'.$option['value'].'" ';
+            if(isset($this->data['value']) && $this->data['value'] == $option['value']){
+                $options .= 'selected="selected" ';
+                $selected = true;
+            }
+            $options .= $option['more'].'>'.$option['text'].'</option>';
         }
-        return $html.'</select>';
+
+        $html = '<select name="'.$this->data['name'].'" ';
+        $inputmore = '';
+        if(isset($this->data['other.text'])){
+            $options .= '<option value="'.$this->data['other.text'].'" '.(isset($this->data['value']) && $selected == false ? 'selected="selected" ' : '').'>'.$this->data['other.text'].'</option>';
+            //script in From->start()
+            $inputmore .= 'class="SelectOther" onchange="SelectOther(this,\''.$this->data['other.text'].'\')" ';
+            $html .= 'class="SelectOther" onchange="SelectOther(this,\''.$this->data['other.text'].'\')" ';
+            if(isset($this->data['value']) && $selected == false){
+                $html .= 'disabled style="display: none;" ';
+                $this->data['other']->value($this->data['value']);
+            }else{
+                $inputmore .= 'disabled style="display: none;" ';
+            }
+        }
+        if(isset($this->data['required']) && $this->data['required'] == true){
+            $html .= 'required ';
+            $inputmore .= 'required ';
+        }
+        $html .= $more.'>';
+        $html .= $options;
+        $html .= '</select>';
+        if(isset($this->data['other'])){
+            $html .= $this->data['other']->html($inputmore.$this->data['other.more']);
+        }
+        return $html;
     }
 }
\ No newline at end of file