We are displaying tabs in product view page as below
Under Add Review tab we need to provide an option to write review for customer.
we are following this link , what i did is i added below code in catalog.xml
file
<block type="catalog/product_view_tabs" name="product.info.tabs" as="info_tabs" template="catalog/product/view/tabs.phtml" >
<action method="addTab" translate="title" module="catalog"><alias>tab_review_list</alias><title>Product Reviews</title><block>review/product_view_list</block><template>catalog/product/view/tabs/reviews.phtml</template></action>
</block>
<reference name="tab_review_list">
<block type="review/form" name="tab_review_form" as="review_form" template="catalog/product/view/tabs/review_form.phtml" />
</reference>
and using <?php echo $this->getChildHtml('review_form'); ? >
in view.phtml file