pay now button on checkout blocks the site

<div class="hikashop_paypal_end" id="hikashop_paypal_end"> <span id="hikashop_paypal_end_message" class="hikashop_paypal_end_message"> <?php echo JText::sprintf('PLEASE_WAIT_BEFORE_REDIRECTION_TO_X', $this->payment_name).'<br/><span id="hikashop_paypal_button_message">'. JText::_('CLICK_ON_BUTTON_IF_NOT_REDIRECTED').'</span>';?> </span> <span id="hikashop_paypal_end_spinner" class="hikashop_paypal_end_spinner hikashop_checkout_end_spinner"> </span> <br/> <form id="hikashop_paypal_form" name="hikashop_paypal_form" action="<?php echo $this->payment_params->url;?>" method="post"> <div id="hikashop_paypal_end_image" class="hikashop_paypal_end_image"> <input id="hikashop_paypal_button" type="submit" class="btn btn-primary" value="<?php echo JText::_('PAY_NOW');?>" name="" alt="<?php echo JText::_('PAY_NOW');?>" /> </div> <?php foreach($this->vars as $name => $value ) { echo '<input type="hidden" name="'.$name.'" value="'.htmlspecialchars((string)$value).'" />'; } //autosubmit the paypal form after the page loads and hide the submit button JRequest::setVar('noform',1); ?> </form> <script type="text/javascript"> <!-- document.getElementById('hikashop_paypal_form').submit(); //--> </script> <!--[if IE]> <script type="text/javascript"> document.getElementById('hikashop_paypal_button').style.display = 'none'; document.getElementById('hikashop_paypal_button_message').innerHTML = ''; </script> <![endif]--> </div>

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