Magento : Get custom options on category page

 Here, The Code for get Custom Options of Products on category Page, This is useful for reduce the time for customer purchase product and add to cart it, there is another methods are also but in that we can't add product with it's custom options, so using this we can add product to cart with its custom options.


 <?php
    $sandy = "";
    $attVal = $product->getOptions();
    if(sizeof($attVal))
    {
          foreach($attVal as $optionVal)
          {   
        $type = $optionVal->getType();
        if($type != 'field' && $type != 'file' )
         {
                $sandy .= $optionVal->getTitle().": ";
                $sandy .= "<select id='select_".$optionVal->getId()."' name='options[".$optionVal->getId()."]'>";
                foreach($optionVal->getValues() as $valuesKey => $valuesVal)
            {           
                if($valuesVal->getPrice() != "0.00000")
                {
                      $sandy .= "<option price='".$valuesVal->getPrice(true)."' value='".$valuesVal->getId()."'>".$valuesVal->getTitle() .'+'.  $valuesVal->getPrice(true) ."</option>";       
                  }
                  else
                  {
                $sandy .=  "<option price='".$valuesVal->getPrice(true)."' value='".$valuesVal->getId()."'>".$valuesVal->getTitle() ."</option>";
                }
            }
            $sandy .= "</select>";
        }
        else if($type == 'file')
        {
            $sandy .= $optionVal->getTitle().": ";
                $sandy .= "<input type='file' name='options_".$optionVal->getId()."_file'>";               
              }
        else
        {
            $sandy .= $optionVal->getTitle() ."  : ";
                $sandy .= "<input type='text' name='options[".$optionVal->getId()."]' id='options_".$optionVal->getId()."_text' onchange='javascript: getval();'>";                  
        }
        }
    }
    echo $sandy;
  ?>

  <?php echo $this->getPriceHtml($_product, true) ?>
    
  <?php if(!$_product->isGrouped()): ?>
  <label>Qty:</label>
        <input type="text" id="qty_main" maxlength="12" value="<?php echo $this->getMinimalQty($_product)==null?1:$this->getMinimalQty($_product) ?>" onblur="calculatetotal();"/>
        <button type="submit" id="addtocartbt_<?php echo $_product->getSku(); ?>" onclick="productAddToCartForm<?php echo $_product->getId() ?>.submit()">Add to Cart</button>
  <?php endif; ?>  
  </div>
                                        
  </form>
      
<script type="text/javascript">
       
var productAddToCartForm<?php echo $_product->getId() ?> = new VarienForm('product_addtocart_form_<?php echo $_product->getId() ?>');                       
    productAddToCartForm<?php echo $_product->getId() ?>.submit = function()
    {
            if (this.validator.validate())
        {   
            this.form.submit();                           
            }                   
        }.bind(productAddToCartForm<?php echo $_product->getId() ?>);
  </script>
  <?php else: ?>
      <div class="out-of-stock"><?php echo $this->__('Out of stock') ?></div>
  <?php endif; ?>