diff --git a/bridges/BooruprojectBridge.php b/bridges/BooruprojectBridge.php
index 635aae5..b6df665 100644
--- a/bridges/BooruprojectBridge.php
+++ b/bridges/BooruprojectBridge.php
@@ -1,48 +1,36 @@
 <?php
-class BooruprojectBridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
+
+class BooruprojectBridge extends GelbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Booruproject";
 	const URI = "http://booru.org/";
-	const DESCRIPTION = "Returns images from given page and booruproject instance (****.booru.org)";
+	const DESCRIPTION = "Returns images from given page of booruproject";
 
-    const PARAMETERS = array( array(
-          'i'=>array(
-            'name'=>'instance (required)',
-            'required'=>true
-          ),
-          'p'=>array(
-              'name'=>'page',
-              'type'=>'number'
-          ),
-          't'=>array('name'=>'tags')
-        ));
+    const PARAMETERS = array(
+      'global'=>array(
+        'p'=>array(
+          'name'=>'page',
+          'type'=>'number'
+        ),
+        't'=>array('name'=>'tags')
+      ),
+      'Booru subdomain (subdomain.booru.org)'=>array(
+        'i'=>array(
+        'name'=>'Subdomain',
+        'required'=>true
+        )
+      )
+    );
 
-    function getURI(){
-        return 'http://'.$this->getInput('i').'.booru.org/';
+    const PIDBYPAGE=20;
+
+    public function getURI(){
+      return 'http://'.$this->getInput('i').'.booru.org/';
     }
 
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            $this->getURI().'index.php?page=post&s=list'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*20:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Booruprojec.');
-
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = $this->getURI().$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->find('a', 0)->getAttribute('id'));
-		$item['timestamp'] = time();
-		$item['tags'] = $element->find('img', 0)->getAttribute('title');
-		$item['title'] = 'Booruproject '.$this->getInput('i').' | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $element->find('img', 0)->src . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
+    public function getName(){
+      return static::NAME . ' ' . $this->getInput('i');
     }
 }
diff --git a/bridges/GelbooruBridge.php b/bridges/GelbooruBridge.php
index f612c98..25cd6a3 100644
--- a/bridges/GelbooruBridge.php
+++ b/bridges/GelbooruBridge.php
@@ -1,40 +1,21 @@
 <?php
-class GelbooruBridge extends BridgeAbstract{
+require_once('DanbooruBridge.php');
+
+class GelbooruBridge extends DanbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Gelbooru";
 	const URI = "http://gelbooru.com/";
 	const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
+    const PATHTODATA='.thumb';
+    const IDATTRIBUTE='id';
 
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*63:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Gelbooru.');
+    const PIDBYPAGE=63;
 
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Gelbooru | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
+    protected function getFullURI(){
+      return $this->getURI().'index.php?page=post&s=list&'
+        .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*static::PIDBYPAGE:'')
+        .'&tags='.urlencode($this->getInput('t'));
     }
 }
diff --git a/bridges/MspabooruBridge.php b/bridges/MspabooruBridge.php
index 821207e..96ae52a 100644
--- a/bridges/MspabooruBridge.php
+++ b/bridges/MspabooruBridge.php
@@ -1,42 +1,12 @@
 <?php
-class MspabooruBridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
 
+class MspabooruBridge extends GelbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Mspabooru";
 	const URI = "http://mspabooru.com/";
 	const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
-
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Mspabooru.');
-
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Mspabooru | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
-    }
+    const PIDBYPAGE=50;
 }
diff --git a/bridges/Rule34Bridge.php b/bridges/Rule34Bridge.php
index 541184d..62a9e10 100644
--- a/bridges/Rule34Bridge.php
+++ b/bridges/Rule34Bridge.php
@@ -1,41 +1,12 @@
 <?php
-class Rule34Bridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
+
+class Rule34Bridge extends GelbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Rule34";
 	const URI = "http://rule34.xxx/";
 	const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
-
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Rule34.');
-
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Rule34 | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
-    }
+    const PIDBYPAGE=50;
 }
diff --git a/bridges/SafebooruBridge.php b/bridges/SafebooruBridge.php
index d27702c..ea1c004 100644
--- a/bridges/SafebooruBridge.php
+++ b/bridges/SafebooruBridge.php
@@ -1,40 +1,12 @@
 <?php
-class SafebooruBridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
+
+class SafebooruBridge extends GelbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Safebooru";
 	const URI = "http://safebooru.org/";
 	const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
-
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*40:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Safebooru.');
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Safebooru | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
-    }
+    const PIDBYPAGE=40;
 }
diff --git a/bridges/TbibBridge.php b/bridges/TbibBridge.php
index 1927a67..d9c2119 100644
--- a/bridges/TbibBridge.php
+++ b/bridges/TbibBridge.php
@@ -1,41 +1,12 @@
 <?php
-class TbibBridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
+
+class TbibBridge extends GelbooruBridge{
 
 	const MAINTAINER = "mitsukarenai";
 	const NAME = "Tbib";
 	const URI = "http://tbib.org/";
 	const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
-
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Tbib.');
-
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Tbib | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
-    }
+    const PIDBYPAGE=50;
 }
diff --git a/bridges/XbooruBridge.php b/bridges/XbooruBridge.php
index a909b06..e0bd4e1 100644
--- a/bridges/XbooruBridge.php
+++ b/bridges/XbooruBridge.php
@@ -1,41 +1,12 @@
 <?php
-class XbooruBridge extends BridgeAbstract{
+require_once('GelbooruBridge.php');
+
+class XbooruBridge extends GelbooruBridge{
 
     const MAINTAINER = "mitsukarenai";
     const NAME = "Xbooru";
     const URI = "http://xbooru.com/";
     const DESCRIPTION = "Returns images from given page";
 
-    const PARAMETERS = array( array(
-        'p'=>array(
-            'name'=>'page',
-            'type'=>'number'
-        ),
-        't'=>array('name'=>'tags')
-    ));
-
-    public function collectData(){
-        $html = $this->getSimpleHTMLDOM(
-            self::URI.'index.php?page=post&s=list&'
-            .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
-            .'&tags='.urlencode($this->getInput('t'))
-        ) or $this->returnServerError('Could not request Xbooru.');
-
-
-	foreach($html->find('div[class=content] span') as $element) {
-		$item = array();
-		$item['uri'] = self::URI.$element->find('a', 0)->href;
-		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
-		$item['timestamp'] = time();
-		$thumbnailUri = $element->find('img', 0)->src;
-		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
-		$item['title'] = 'Xbooru | '.$item['postid'];
-		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
-		$this->items[] = $item;
-	}
-    }
-
-    public function getCacheDuration(){
-        return 1800; // 30 minutes
-    }
+    const PIDBYPAGE=50;
 }