Magento compare products ajax

1. add compare html elem:

 

 <!--  compare box -->
	                    	<div class="compare-box">
							<?php echo $this->__('compare')?>
		                        <a class="compare-a <?php echo $this->getCompareClass($_product->getId());?>"	                     	                 
		                        to_url="<?php echo $_compare_helper->getChangeAjaxUrl($_product);?>"
		                        is_compare="<?php if($this->is_compare($_product->getId())){
		                        	echo 1;
		                        } else {
		                        	echo 0;
		                        }?>"
		                        ><?php echo $this->__('compare')?>            
		                        <span class="icon"></span>
		                        </a> 
	                    	</div>
	                    	<!--  compare box -->

 2. get the compare status and class label info function in block class:

	public function getCompareClass($productId) {
		
		$product = Mage::getModel('catalog/product')->load($productId);
		$item = Mage::getModel('catalog/product_compare_item');
		$list = Mage::getModel('catalog/product_compare_list');
		//$list->_addVisitorToItem($item);
		
		$item->addVisitorId(Mage::getSingleton('log/visitor')->getId());
		if (Mage::getSingleton('customer/session')->isLoggedIn()) {
			$item->addCustomerData(Mage::getSingleton('customer/session')->getCustomer());
		}
		
		$item->loadByProduct($product);
		if ($item->getId()) {
			return 'compared';
		} else {
			return 'uncompared';
		}
	}

	public function getCompareLabel($productId) {
	
		$product = Mage::getModel('catalog/product')->load($productId);
		$item = Mage::getModel('catalog/product_compare_item');
		$list = Mage::getModel('catalog/product_compare_list');
		//$list->_addVisitorToItem($item);
	
		$item->addVisitorId(Mage::getSingleton('log/visitor')->getId());
		if (Mage::getSingleton('customer/session')->isLoggedIn()) {
			$item->addCustomerData(Mage::getSingleton('customer/session')->getCustomer());
		}
	
		$item->loadByProduct($product);
		if ($item->getId()) {
			return 'Compared';
		} else {
			return 'Uncompared';
		}
	}

	/**
	 * check the product is compare or not
	 * @param unknown $productId
	 */
	public function is_compare($productId) {
		$product = Mage::getModel('catalog/product')->load($productId);
		$item = Mage::getModel('catalog/product_compare_item');
		$list = Mage::getModel('catalog/product_compare_list');
		//$list->_addVisitorToItem($item);
		
		$item->addVisitorId(Mage::getSingleton('log/visitor')->getId());
		if (Mage::getSingleton('customer/session')->isLoggedIn()) {
			$item->addCustomerData(Mage::getSingleton('customer/session')->getCustomer());
		}
		
		$item->loadByProduct($product);
		if ($item->getId()) {
			return true;
		} else {
			return false;
		}		
	}

 3. rewrite core helper file to set new custom compare function url:

the php:

<?php
class Bysoft_Mycatalog_Helper_Product_Compare extends Mage_Catalog_Helper_Product_Compare
{
	// some code
	
	public function getAddajaxUrl($product)
	{
		return $this->_getUrl('catalog/product_compare/addajax', $this->_getAjaxUrlParams($product));
	}
	
	protected function _getAjaxUrlParams($product)
	{
		return array(
				'product' => $product->getId()
		);
	}
	
	public function getChangeAjaxUrl($product) {
		return $this->_getUrl('catalog/product_compare/changeajax', $this->_getAjaxUrlParams($product));
	}
	public function getAddCompareUrl($product) {
		return $this->_getUrl('catalog/product_compare/addtocompareajax', $this->_getAjaxUrlParams($product));
	}
	
	/**
	 * Retrieve remove item from compare list url
	 *
	 * @param   $item
	 * @return  string
	 */
	public function getRemoveajaxUrl($item)
	{
		$params = array(
				'product' => $item->getId(),
		);
		return $this->_getUrl('catalog/product_compare/removeajax', $params);
	}
	
	
}

 the xml:

<config>
  <modules>
    <Bysoft_Mycatalog>
      <version>0.1.0</version>
    </Bysoft_Mycatalog>
  </modules>
  <global>
    <helpers>
      <mycatalog>
        <class>Bysoft_Mycatalog_Helper</class>
        <resourceModel>mycatalog_mysql4</resourceModel>
      </mycatalog>
      <catalog>
		<rewrite>
			<product_compare>Bysoft_Mycatalog_Helper_Product_Compare</product_compare>			
		</rewrite>
      </catalog>
      
    </helpers>

 

4. custom function for deal with ajax compare action:

the php:

require_once(Mage::getModuleDir('controllers','Mage_Catalog').DS.'Product'.DS.'CompareController.php');
class Bysoft_Mycatalog_Product_CompareController extends Mage_Catalog_Product_CompareController {
	protected $_items;
	protected $_max_pc;
	protected $_max_mobile;
	
	//clecn all products in compare list
	public function cleanajaxAction() {
		$items = Mage::getResourceModel('catalog/product_compare_item_collection');
		if (Mage::getSingleton('customer/session')->isLoggedIn()) {
			$items->setCustomerId(Mage::getSingleton('customer/session')->getCustomerId());
		} elseif ($this->_customerId) {
			$items->setCustomerId($this->_customerId);
		} else {
			$items->setVisitorId(Mage::getSingleton('log/visitor')->getId());
		}
		
		/** @var $session Mage_Catalog_Model_Session */
		$session = Mage::getSingleton('catalog/session');
		
		try {
			$items->clear();
			Mage::helper('catalog/product_compare')->calculate();
			echo json_encode(array('status'=>'1','msg'=>'clean compare products successed!'));
			return;
		}
		catch (Exception $e){
			//do nothing
			echo json_encode(array('status'=>'2','msg'=>$this->__($e->getMessage())));
			return;
		}
	}
	
	//add product to compare from detail page
	public function addtocompareajaxAction() {
		$productId = (int) $this->getRequest()->getParam('product');
		
		
	}
	
	public function changeajaxAction() {
		$productId = (int) $this->getRequest()->getParam('product');
		if ($productId
				&& (Mage::getSingleton('log/visitor')->getId() || Mage::getSingleton('customer/session')->isLoggedIn())
		) {
			if ($this->is_compare($productId)) {
				// to uncompared
				 $this->remove_compare($productId);
				
			} else {
				// to compared
				 $this->add_compare($productId);
			}			
		}		
	}
	/**
	 * check the product is compare or not
	 * @param unknown $productId
	 */
	public function is_compare($productId) {
		
		$product = Mage::getModel('catalog/product')->load($productId);
		$item = Mage::getModel('catalog/product_compare_item');
		$list = Mage::getModel('catalog/product_compare_list');
		//$list->_addVisitorToItem($item);
	
		$item->addVisitorId(Mage::getSingleton('log/visitor')->getId());
		if (Mage::getSingleton('customer/session')->isLoggedIn()) {
			$item->addCustomerData(Mage::getSingleton('customer/session')->getCustomer());
		}
	
		$item->loadByProduct($product);
		if ($item->getId()) {
			return true;
		} else {
			return false;
		}
	}
	
	public function mobileAction() {
		  $items = $this->getRequest()->getParam('items');

        if ($beforeUrl = $this->getRequest()->getParam(self::PARAM_NAME_URL_ENCODED)) {
            Mage::getSingleton('catalog/session')
                ->setBeforeCompareUrl(Mage::helper('core')->urlDecode($beforeUrl));
        }

        if ($items) {
            $items = explode(',', $items);
            $list = Mage::getSingleton('catalog/product_compare_list');
            $list->addProducts($items);
            $this->_redirect('*/*/*');
            return;
        }

        $this->loadLayout();
        $this->renderLayout();
	}
	
	public function exists_other_attribute_set_product($productId) {
		//get product attribute set name 
		$product = Mage::getModel('catalog/product')->load($productId);
		$attributeSetId  = $product->getAttributeSetId();
		
		$exists_flag = false;
		//get item colletion
		$collection = $this->getItems();
		
		foreach ($collection as $_product) {
			$attributeSetCompareId = $_product->getData('attribute_set_id');
			if ($attributeSetCompareId != $attributeSetId) {
				$exists_flag = true;
				break;
			}
		}		
		return $exists_flag;
	}
	
	public function reach_max() {
		$this->_max_pc = 4;
		$this->_max_mobile = 2;
		if ($this->is_mobile()) {
			$max = $this->_max_mobile;
		} else {
			$max = $this->_max_pc;
		}
		
		$_items = $this->getItems();
		if ($_items->getSize() == $max) {
			return true;
		} else {
			return false;
		}
	}
	
	public function getItems()
	{
			Mage::helper('catalog/product_compare')->setAllowUsedFlat(false);
			$this->_items = Mage::getResourceModel('catalog/product_compare_item_collection')
			->useProductItem(true)
			->setStoreId(Mage::app()->getStore()->getId());
	
			if (Mage::getSingleton('customer/session')->isLoggedIn()) {
				$this->_items->setCustomerId(Mage::getSingleton('customer/session')->getCustomerId());
			} elseif ($this->_customerId) {
				$this->_items->setCustomerId($this->_customerId);
			} else {
				$this->_items->setVisitorId(Mage::getSingleton('log/visitor')->getId());
			}
	
			$this->_items
			->addAttributeToSelect(Mage::getSingleton('catalog/config')->getProductAttributes())
			->loadComparableAttributes()
			->addMinimalPrice()
			->addTaxPercents();
	
			Mage::getSingleton('catalog/product_visibility')
			->addVisibleInSiteFilterToCollection($this->_items);
		return $this->_items;
	}
	
	public function add_compare($productId) {
		$max = '';
		try {
			if ($productId
					&& (Mage::getSingleton('log/visitor')->getId() || Mage::getSingleton('customer/session')->isLoggedIn())
			) {
				if (!$this->exists_other_attribute_set_product($productId)) { // check exists other set products
					if (!$this->reach_max()) {//check max compare number
						$product = Mage::getModel('catalog/product')
						->setStoreId(Mage::app()->getStore()->getId())
						->load($productId);
				
						if ($product->getId()/* && !$product->isSuper()*/) {
							Mage::getSingleton('catalog/product_compare_list')->addProduct($product);
							/*
							Mage::getSingleton('catalog/session')->addSuccess(
							$this->__('The product %s has been added to comparison list.', Mage::helper('core')->escapeHtml($product->getName()))
							);
							*/
							Mage::dispatchEvent('catalog_product_compare_add_product', array('product'=>$product));
						}
						Mage::helper('catalog/product_compare')->calculate();
					} else {
						if ($this->is_mobile()) {
							$max = $this->_max_mobile;
						} else {
							$max = $this->_max_pc;
						}
						echo json_encode(array('status'=>'2','msg'=>$this->__("You can compare only {$max} items at the same time.")));
						return;
						
					}
				} else {
					echo json_encode(array('status'=>'2','msg'=>$this->__('Please add same type product into compare list.')));
					return;
				}
			}
			echo json_encode(array('status'=>'1','is_compare'=>'1', 'compare_count'=>Mage::helper('catalog/product_compare')->getItemCollection()->getSize()));
			return;
		} catch (Exception $e) {
			echo json_encode(array('status'=>'2','msg'=>$e->getMessage()));
			return;
		}
	}
	
	public function remove_compare($productId) {
		try {
			if ((int) $productId) {
				$product = Mage::getModel('catalog/product')
				->setStoreId(Mage::app()->getStore()->getId())
				->load($productId);
		
				if($product->getId()) {
					/** @var $item Mage_Catalog_Model_Product_Compare_Item */
					$item = Mage::getModel('catalog/product_compare_item');
					if(Mage::getSingleton('customer/session')->isLoggedIn()) {
						$item->addCustomerData(Mage::getSingleton('customer/session')->getCustomer());
					} elseif ($this->_customerId) {
						$item->addCustomerData(
								Mage::getModel('customer/customer')->load($this->_customerId)
						);
					} else {
						$item->addVisitorId(Mage::getSingleton('log/visitor')->getId());
					}
		
					$item->loadByProduct($product);
		
					if($item->getId()) {
						$item->delete();
						/*
						Mage::getSingleton('catalog/session')->addSuccess(
						$this->__('The product %s has been removed from comparison list.', $product->getName())
						);
						*/
						Mage::dispatchEvent('catalog_product_compare_remove_product', array('product'=>$item));
						Mage::helper('catalog/product_compare')->calculate();
					}
				}
			}
			echo  json_encode(array('status'=>'1','is_compare'=>0,'compare_count'=>Mage::helper('catalog/product_compare')->getItemCollection()->getSize()));
			return;
		} catch (Exception $e) {
			echo  json_encode(array('status'=>'2','msg'=>$e->getMessage()));
			return;
		}
	}
	
	public static function is_mobile(){
		$user_agent = $_SERVER['HTTP_USER_AGENT']; // get the user agent value - this should be cleaned to ensure no nefarious input gets executed
		$accept     = $_SERVER['HTTP_ACCEPT']; // get the content accept value - this should be cleaned to ensure no nefarious input gets executed
		return false
		|| (preg_match('/ipad/i',$user_agent))
		|| (preg_match('/ipod/i',$user_agent)||preg_match('/iphone/i',$user_agent))
		|| (preg_match('/android/i',$user_agent))
		|| (preg_match('/opera mini/i',$user_agent))
		|| (preg_match('/blackberry/i',$user_agent))
		|| (preg_match('/(pre\/|palm os|palm|hiptop|avantgo|plucker|xiino|blazer|elaine)/i',$user_agent))
		|| (preg_match('/(iris|3g_t|windows ce|opera mobi|windows ce; smartphone;|windows ce; iemobile)/i',$user_agent))
		|| (preg_match('/(mini 9.5|vx1000|lge |m800|e860|u940|ux840|compal|wireless| mobi|ahong|lg380|lgku|lgu900|lg210|lg47|lg920|lg840|lg370|sam-r|mg50|s55|g83|t66|vx400|mk99|d615|d763|el370|sl900|mp500|samu3|samu4|vx10|xda_|samu5|samu6|samu7|samu9|a615|b832|m881|s920|n210|s700|c-810|_h797|mob-x|sk16d|848b|mowser|s580|r800|471x|v120|rim8|c500foma:|160x|x160|480x|x640|t503|w839|i250|sprint|w398samr810|m5252|c7100|mt126|x225|s5330|s820|htil-g1|fly v71|s302|-x113|novarra|k610i|-three|8325rc|8352rc|sanyo|vx54|c888|nx250|n120|mtk |c5588|s710|t880|c5005|i;458x|p404i|s210|c5100|teleca|s940|c500|s590|foma|samsu|vx8|vx9|a1000|_mms|myx|a700|gu1100|bc831|e300|ems100|me701|me702m-three|sd588|s800|8325rc|ac831|mw200|brew |d88|htc\/|htc_touch|355x|m50|km100|d736|p-9521|telco|sl74|ktouch|m4u\/|me702|8325rc|kddi|phone|lg |sonyericsson|samsung|240x|x320|vx10|nokia|sony cmd|motorola|up.browser|up.link|mmp|symbian|smartphone|midp|wap|vodafone|o2|pocket|kindle|mobile|psp|treo)/i',$user_agent))
		|| ((strpos($accept,'text/vnd.wap.wml')>0)||(strpos($accept,'application/vnd.wap.xhtml+xml')>0))
		|| (isset($_SERVER['HTTP_X_WAP_PROFILE'])||isset($_SERVER['HTTP_PROFILE']))
		|| (in_array(strtolower(substr($user_agent,0,4)),array('1207'=>'1207','3gso'=>'3gso','4thp'=>'4thp','501i'=>'501i','502i'=>'502i','503i'=>'503i','504i'=>'504i','505i'=>'505i','506i'=>'506i','6310'=>'6310','6590'=>'6590','770s'=>'770s','802s'=>'802s','a wa'=>'a wa','acer'=>'acer','acs-'=>'acs-','airn'=>'airn','alav'=>'alav','asus'=>'asus','attw'=>'attw','au-m'=>'au-m','aur '=>'aur ','aus '=>'aus ','abac'=>'abac','acoo'=>'acoo','aiko'=>'aiko','alco'=>'alco','alca'=>'alca','amoi'=>'amoi','anex'=>'anex','anny'=>'anny','anyw'=>'anyw','aptu'=>'aptu','arch'=>'arch','argo'=>'argo','bell'=>'bell','bird'=>'bird','bw-n'=>'bw-n','bw-u'=>'bw-u','beck'=>'beck','benq'=>'benq','bilb'=>'bilb','blac'=>'blac','c55/'=>'c55/','cdm-'=>'cdm-','chtm'=>'chtm','capi'=>'capi','cond'=>'cond','craw'=>'craw','dall'=>'dall','dbte'=>'dbte','dc-s'=>'dc-s','dica'=>'dica','ds-d'=>'ds-d','ds12'=>'ds12','dait'=>'dait','devi'=>'devi','dmob'=>'dmob','doco'=>'doco','dopo'=>'dopo','el49'=>'el49','erk0'=>'erk0','esl8'=>'esl8','ez40'=>'ez40','ez60'=>'ez60','ez70'=>'ez70','ezos'=>'ezos','ezze'=>'ezze','elai'=>'elai','emul'=>'emul','eric'=>'eric','ezwa'=>'ezwa','fake'=>'fake','fly-'=>'fly-','fly_'=>'fly_','g-mo'=>'g-mo','g1 u'=>'g1 u','g560'=>'g560','gf-5'=>'gf-5','grun'=>'grun','gene'=>'gene','go.w'=>'go.w','good'=>'good','grad'=>'grad','hcit'=>'hcit','hd-m'=>'hd-m','hd-p'=>'hd-p','hd-t'=>'hd-t','hei-'=>'hei-','hp i'=>'hp i','hpip'=>'hpip','hs-c'=>'hs-c','htc '=>'htc ','htc-'=>'htc-','htca'=>'htca','htcg'=>'htcg','htcp'=>'htcp','htcs'=>'htcs','htct'=>'htct','htc_'=>'htc_','haie'=>'haie','hita'=>'hita','huaw'=>'huaw','hutc'=>'hutc','i-20'=>'i-20','i-go'=>'i-go','i-ma'=>'i-ma','i230'=>'i230','iac'=>'iac','iac-'=>'iac-','iac/'=>'iac/','ig01'=>'ig01','im1k'=>'im1k','inno'=>'inno','iris'=>'iris','jata'=>'jata','java'=>'java','kddi'=>'kddi','kgt'=>'kgt','kgt/'=>'kgt/','kpt '=>'kpt ','kwc-'=>'kwc-','klon'=>'klon','lexi'=>'lexi','lg g'=>'lg g','lg-a'=>'lg-a','lg-b'=>'lg-b','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-f'=>'lg-f','lg-g'=>'lg-g','lg-k'=>'lg-k','lg-l'=>'lg-l','lg-m'=>'lg-m','lg-o'=>'lg-o','lg-p'=>'lg-p','lg-s'=>'lg-s','lg-t'=>'lg-t','lg-u'=>'lg-u','lg-w'=>'lg-w','lg/k'=>'lg/k','lg/l'=>'lg/l','lg/u'=>'lg/u','lg50'=>'lg50','lg54'=>'lg54','lge-'=>'lge-','lge/'=>'lge/','lynx'=>'lynx','leno'=>'leno','m1-w'=>'m1-w','m3ga'=>'m3ga','m50/'=>'m50/','maui'=>'maui','mc01'=>'mc01','mc21'=>'mc21','mcca'=>'mcca','medi'=>'medi','meri'=>'meri','mio8'=>'mio8','mioa'=>'mioa','mo01'=>'mo01','mo02'=>'mo02','mode'=>'mode','modo'=>'modo','mot '=>'mot ','mot-'=>'mot-','mt50'=>'mt50','mtp1'=>'mtp1','mtv '=>'mtv ','mate'=>'mate','maxo'=>'maxo','merc'=>'merc','mits'=>'mits','mobi'=>'mobi','motv'=>'motv','mozz'=>'mozz','n100'=>'n100','n101'=>'n101','n102'=>'n102','n202'=>'n202','n203'=>'n203','n300'=>'n300','n302'=>'n302','n500'=>'n500','n502'=>'n502','n505'=>'n505','n700'=>'n700','n701'=>'n701','n710'=>'n710','nec-'=>'nec-','nem-'=>'nem-','newg'=>'newg','neon'=>'neon','netf'=>'netf','noki'=>'noki','nzph'=>'nzph','o2 x'=>'o2 x','o2-x'=>'o2-x','opwv'=>'opwv','owg1'=>'owg1','opti'=>'opti','oran'=>'oran','p800'=>'p800','pand'=>'pand','pg-1'=>'pg-1','pg-2'=>'pg-2','pg-3'=>'pg-3','pg-6'=>'pg-6','pg-8'=>'pg-8','pg-c'=>'pg-c','pg13'=>'pg13','phil'=>'phil','pn-2'=>'pn-2','pt-g'=>'pt-g','palm'=>'palm','pana'=>'pana','pire'=>'pire','pock'=>'pock','pose'=>'pose','psio'=>'psio','qa-a'=>'qa-a','qc-2'=>'qc-2','qc-3'=>'qc-3','qc-5'=>'qc-5','qc-7'=>'qc-7','qc07'=>'qc07','qc12'=>'qc12','qc21'=>'qc21','qc32'=>'qc32','qc60'=>'qc60','qci-'=>'qci-','qwap'=>'qwap','qtek'=>'qtek','r380'=>'r380','r600'=>'r600','raks'=>'raks','rim9'=>'rim9','rove'=>'rove','s55/'=>'s55/','sage'=>'sage','sams'=>'sams','sc01'=>'sc01','sch-'=>'sch-','scp-'=>'scp-','sdk/'=>'sdk/','se47'=>'se47','sec-'=>'sec-','sec0'=>'sec0','sec1'=>'sec1','semc'=>'semc','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','sk-0'=>'sk-0','sl45'=>'sl45','slid'=>'slid','smb3'=>'smb3','smt5'=>'smt5','sp01'=>'sp01','sph-'=>'sph-','spv '=>'spv ','spv-'=>'spv-','sy01'=>'sy01','samm'=>'samm','sany'=>'sany','sava'=>'sava','scoo'=>'scoo','send'=>'send','siem'=>'siem','smar'=>'smar','smit'=>'smit','soft'=>'soft','sony'=>'sony','t-mo'=>'t-mo','t218'=>'t218','t250'=>'t250','t600'=>'t600','t610'=>'t610','t618'=>'t618','tcl-'=>'tcl-','tdg-'=>'tdg-','telm'=>'telm','tim-'=>'tim-','ts70'=>'ts70','tsm-'=>'tsm-','tsm3'=>'tsm3','tsm5'=>'tsm5','tx-9'=>'tx-9','tagt'=>'tagt','talk'=>'talk','teli'=>'teli','topl'=>'topl','hiba'=>'hiba','up.b'=>'up.b','upg1'=>'upg1','utst'=>'utst','v400'=>'v400','v750'=>'v750','veri'=>'veri','vk-v'=>'vk-v','vk40'=>'vk40','vk50'=>'vk50','vk52'=>'vk52','vk53'=>'vk53','vm40'=>'vm40','vx98'=>'vx98','virg'=>'virg','vite'=>'vite','voda'=>'voda','vulc'=>'vulc','w3c '=>'w3c ','w3c-'=>'w3c-','wapj'=>'wapj','wapp'=>'wapp','wapu'=>'wapu','wapm'=>'wapm','wig '=>'wig ','wapi'=>'wapi','wapr'=>'wapr','wapv'=>'wapv','wapy'=>'wapy','wapa'=>'wapa','waps'=>'waps','wapt'=>'wapt','winc'=>'winc','winw'=>'winw','wonu'=>'wonu','x700'=>'x700','xda2'=>'xda2','xdag'=>'xdag','yas-'=>'yas-','your'=>'your','zte-'=>'zte-','zeto'=>'zeto','acs-'=>'acs-','alav'=>'alav','alca'=>'alca','amoi'=>'amoi','aste'=>'aste','audi'=>'audi','avan'=>'avan','benq'=>'benq','bird'=>'bird','blac'=>'blac','blaz'=>'blaz','brew'=>'brew','brvw'=>'brvw','bumb'=>'bumb','ccwa'=>'ccwa','cell'=>'cell','cldc'=>'cldc','cmd-'=>'cmd-','dang'=>'dang','doco'=>'doco','eml2'=>'eml2','eric'=>'eric','fetc'=>'fetc','hipt'=>'hipt','http'=>'http','ibro'=>'ibro','idea'=>'idea','ikom'=>'ikom','inno'=>'inno','ipaq'=>'ipaq','jbro'=>'jbro','jemu'=>'jemu','java'=>'java','jigs'=>'jigs','kddi'=>'kddi','keji'=>'keji','kyoc'=>'kyoc','kyok'=>'kyok','leno'=>'leno','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-g'=>'lg-g','lge-'=>'lge-','libw'=>'libw','m-cr'=>'m-cr','maui'=>'maui','maxo'=>'maxo','midp'=>'midp','mits'=>'mits','mmef'=>'mmef','mobi'=>'mobi','mot-'=>'mot-','moto'=>'moto','mwbp'=>'mwbp','mywa'=>'mywa','nec-'=>'nec-','newt'=>'newt','nok6'=>'nok6','noki'=>'noki','o2im'=>'o2im','opwv'=>'opwv','palm'=>'palm','pana'=>'pana','pant'=>'pant','pdxg'=>'pdxg','phil'=>'phil','play'=>'play','pluc'=>'pluc','port'=>'port','prox'=>'prox','qtek'=>'qtek','qwap'=>'qwap','rozo'=>'rozo','sage'=>'sage','sama'=>'sama','sams'=>'sams','sany'=>'sany','sch-'=>'sch-','sec-'=>'sec-','send'=>'send','seri'=>'seri','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','siem'=>'siem','smal'=>'smal','smar'=>'smar','sony'=>'sony','sph-'=>'sph-','symb'=>'symb','t-mo'=>'t-mo','teli'=>'teli','tim-'=>'tim-','tosh'=>'tosh','treo'=>'treo','tsm-'=>'tsm-','upg1'=>'upg1','upsi'=>'upsi','vk-v'=>'vk-v','voda'=>'voda','vx52'=>'vx52','vx53'=>'vx53','vx60'=>'vx60','vx61'=>'vx61','vx70'=>'vx70','vx80'=>'vx80','vx81'=>'vx81','vx83'=>'vx83','vx85'=>'vx85','wap-'=>'wap-','wapa'=>'wapa','wapi'=>'wapi','wapp'=>'wapp','wapr'=>'wapr','webc'=>'webc','whit'=>'whit','winw'=>'winw','wmlb'=>'wmlb','xda-'=>'xda-',)))
		;
	}
}
?>

 the xml:

<config>
 <frontend>
        <routers>
            <catalog>
				<args>
					<modules>
						<bysoft_mycatalog before="Mage_Catalog">Bysoft_Mycatalog</bysoft_mycatalog>
					</modules>
				</args>
			</catalog>
			 <mycatalog>
                <use>standard</use>
                <args>
                    <module>Bysoft_Mycatalog</module>
                    <frontName>mycatalog</frontName>
                </args>
            </mycatalog>
        </routers>
        <layout>
            <updates>
                <mycatalog>
                    <file>mycatalog.xml</file>
                </mycatalog>
            </updates>
        </layout>   
  </frontend>