add to cart button redirect to index.php

[ysdoar]

i add this code into com_virtuemart/views/virtuemart/tmpl :

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<form method="post" class="product js-recalculate" action="index.php"  id="addtocartproduct<?php echo $product->virtuemart_product_id ?>">
<?php // Product custom_fields
if (!empty($this->product->customfieldsCart)) { ?>
    <div class="product-fields">
<?php foreach ($this->product->customfieldsCart as $field) { ?>
    <div class="product-field product-field-type-<?php echo $field->field_type ?>">
<span class="product-fields-title" ><b><?php echo JText::_($field->custom_title) ?></b></span>
<?php if ($field->custom_tip)
    echo JHTML::tooltip($field->custom_tip, JText::_($field->custom_title), 'tooltip.png'); ?>
<span class="product-field-display"><?php echo $field->display ?></span>

<span class="product-field-desc"><?php echo $field->custom_field_desc ?></span>
    </div><br />
    <?php
}
?>
    </div>
<?php
}
/* Product custom Childs
 * to display a simple link use $field->virtuemart_product_id as link to child product_id
 * custom_value is relation value to child
 */

if (!empty($this->product->customsChilds)) {
    ?>
    <div class="product-fields">
    <?php foreach ($this->product->customsChilds as $field) { ?>
    <div class="product-field product-field-type-<?php echo $field->field->field_type ?>">
<span class="product-fields-title" ><b><?php echo JText::_($field->field->custom_title) ?></b></span>
<span class="product-field-desc"><?php echo JText::_($field->field->custom_value) ?></span>
<span class="product-field-display"><?php echo $field->display ?></span>

    </div><br />
<?php } ?>
    </div>
<?php } ?>

<div class="addtocart-bar">

<?php // Display the quantity box 

    $stockhandle = VmConfig::get('stockhandle', 'none');
    if (($stockhandle == 'disableit' or $stockhandle == 'disableadd') and ($this->product->product_in_stock - $this->product->product_ordered) < 1) {
 ?>
<a href="<?php echo JRoute::_('index.php?option=com_virtuemart&view=productdetails&layout=notify&virtuemart_product_id='.$this->product->virtuemart_product_id); ?>"><?php echo JText::_('COM_VIRTUEMART_CART_NOTIFY') ?></a>

<?php } else { ?>
<!-- <label for="quantity<?php echo $this->product->virtuemart_product_id; ?>" class="quantity_box"><?php echo JText::_('COM_VIRTUEMART_CART_QUANTITY'); ?>: </label> -->
    <span class="quantity-box">
<input style="display:none;" type="text" class="quantity-input js-recalculate" name="quantity[]" value="<?php if (isset($this->product->min_order_level) && (int) $this->product->min_order_level > 0) {
    echo $this->product->min_order_level;
} else {
    echo '1';
} ?>" />
    </span>
   
    <?php // Display the quantity box END ?>

    <?php
    // Display the add to cart button
    ?>
<span class="addtocart-button">
<input type="submit" name="addtocart"  class="addtocart-button" value="<?php echo JText::_('COM_VIRTUEMART_CART_ADD_TO') ?>" title="<?php echo JText::_('COM_VIRTUEMART_CART_ADD_TO') ?>" />
</span>
<?php } ?>

    <div class="clear"></div>
</div>

<?php // Display the add to cart button END  ?>
<input type="hidden" class="pname" value="<?php echo $product->product_name ?>" />
<input type="hidden" name="option" value="com_virtuemart" />
<input type="hidden" name="view" value="cart" />
<noscript><input type="hidden" name="task" value="add" /></noscript>
<input type="hidden" name="virtuemart_product_id[]" value="<?php echo $product->virtuemart_product_id ?>" />
<?php /** @todo Handle the manufacturer view */ ?>
<input type="hidden" name="virtuemart_manufacturer_id" value="<?php echo $product->virtuemart_manufacturer_id ?>" />
<input type="hidden" name="virtuemart_category_id[]" value="<?php echo $product->virtuemart_category_id ?>" />
    </form>


but from some reason it redirect me to index.php

in category view its works fine.

i am using joomla 2.5.6 and vm 2.0.6

thenx in advence

[webjinks]

I have exact same error. Please help!