1) Login to magento admin panel
2 Go to Admin Panel -> System -> Configuration -> Inventory-> Product Stock Options
3) Now click on “Add Minimum Qty” button
4) Set 1 for Minimum Qty and select the groups .

<?php echo Mage::getModel(‘catalog/product’)->load($_product->getId())->getShortDescription() ?>

<?php
$_productCollection=$this->getLoadedProductCollection();
foreach ($_productCollection as $product):
foreach($product->getCategoryIds() as $category):
$categoryIds[] = $category;
endforeach;
endforeach;

print_r( $categoryIds );

?>

<?php echo $this->getLayout()->createBlock(‘mymodule/myblock’)->setTemplate(‘mymodule/myblock.phtml’)->toHtml(); ?>

{{block type=”catalog/product_list” name=”home.catalog.product.list” alias=”products_homepage” category_id=”4″ template=”catalog/product/list.phtml”}}

{{block type=”catalog/product_list” name=”home.catalog.product.list” alias=”products_homepage” template=”catalog/product/list.phtml”}}

{{block type=”catalog/product_new” name=”home.catalog.product.new” alias=”product_homepage” template=”catalog/product/new.phtml”}}

<reference name=”left”>

<block type=”cms/block” name=”blockName” before=”-” >

<action method=”setBlockId”><block_id>block_identifier</block_id></action>

</block>

</reference>

before=”-” – It lists as the first block
after=”-“- It lists as the last block
before=”block_name” – To load before a block
after=”block_name”  – To load after a block