А как быть если в файле header.tpl нет этот строчки - <script type="text/javascript" src="catalog/view/javascript/common.js"></script> 
Шаблон стоит не синдартный, можно ли посивить под другой строчкой? 
  
header.tpl 
<!DOCTYPE html>
<html dir="<?php echo $direction; ?>" lang="<?php echo $lang; ?>">
<head>
<?php 
if (isset($_SERVER['SCRIPT_FILENAME']))
{
	$_theme_include_path = dirname($_SERVER['SCRIPT_FILENAME']) . '/catalog/view/theme/nicole-fashion/';
}
else if (isset($_SERVER['DOCUMENT_ROOT']))
{
	$_theme_include_path = $_SERVER['DOCUMENT_ROOT'] . '/catalog/view/theme/nicole-fashion/';
}
else $_theme_include_path = dirname(__FILE__) . '/../../';
include($_theme_include_path . 'nico_theme_editor/settings.inc');?>
<meta charset="UTF-8" />
<title><?php echo $title; ?></title>
<base href="<?php echo $base; ?>" />
<?php if ($description) { ?>
<meta name="description" content="<?php echo $description; ?>" />
<?php } ?>
<?php if ($keywords) { ?>
<meta name="keywords" content="<?php echo $keywords; ?>" />
<?php } ?>
<?php if ($icon) { ?>
<link href="<?php echo $icon; ?>" rel="icon" />
<?php } ?>
  <meta http-equiv="X-RU-Compatible" content="IE=edge,chrome=1">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="apple-touch-icon" href="/apple-touch-icon.png">
  <!--[if lt IE 9]>
  <script src="https://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
  <![endif]-->
<?php foreach ($links as $link) { ?>
<link href="<?php echo $link['href']; ?>" rel="<?php echo $link['rel']; ?>" />
<?php } ?>
<link rel="stylesheet" type="text/css" href="catalog/view/theme/nicole-fashion/stylesheet/flexslider.css" />
<link rel="stylesheet" type="text/css" href="catalog/view/theme/nicole-fashion/stylesheet/stylesheet.css" />
<link rel='stylesheet' type='text/css' href='catalog/view/theme/nicole-fashion/nico_theme_editor/editor_settings.css' >
<?php foreach ($styles as $style) { ?>
<link rel="<?php echo $style['rel']; ?>" type="text/css" href="<?php echo $style['href']; ?>" media="<?php echo $style['media']; ?>" />
<?php } ?>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script>window.jQuery || document.write("<script src='catalog/view/theme/nicole-fashion/js/jquery-1.8.3.min.js'><\/script>")</script>
<script type="text/javascript" src="catalog/view/javascript/jquery/ui/jquery-ui-1.8.16.custom.min.js"></script>
<link rel="stylesheet" type="text/css" href="catalog/view/javascript/jquery/ui/themes/ui-lightness/jquery-ui-1.8.16.custom.css" />
<script type="text/javascript" src="catalog/view/javascript/jquery/ui/external/jquery.cookie.js"></script>
<script type="text/javascript" src="catalog/view/theme/nicole-fashion/js/jquery.colorbox.js"></script>
<link rel="stylesheet" type="text/css" href="catalog/view/theme/nicole-fashion/js/colorbox.css" media="screen" />
<script type="text/javascript" src="catalog/view/javascript/jquery/tabs.js"></script>
<script type="text/javascript" src="catalog/view/theme/nicole-fashion/js/jquery.dlmenu.js"></script>
<script type="text/javascript" src="catalog/view/theme/nicole-fashion/js/nicole-fashion.js"></script>
<?php foreach ($scripts as $script) { if (strpos($script, 'nivo.slider') == false) {?>
<script type="text/javascript" src="<?php echo $script; ?>"></script>
<?php } } ?>
<!--[if IE 7]>
<link rel="stylesheet" type="text/css" href="catalog/view/theme/nicole-fashion/stylesheet/ie7.css" />
<![endif]-->
<!--[if lt IE 7]>
<link rel="stylesheet" type="text/css" href="catalog/view/theme/nicole-fashion/stylesheet/ie6.css" />
<script type="text/javascript" src="catalog/view/javascript/DD_belatedPNG_0.0.8a-min.js"></script>
<script type="text/javascript">
DD_belatedPNG.fix('#logo img');
</script>
<![endif]-->
<?php echo $google_analytics; ?>
</head>
<body>
<?php include($_theme_include_path . 'nico_theme_editor/editor.inc');?>	
<link href='https://fonts.googleapis.com/css?family=Open+Sans:200,300,400,600,700|Open+Sans+Condensed:300|Pontano+Sans:200,300,400,600,700|PT+Mono:200,300,400,600,700|PT+Sans:200,300,400,600,700|Quicksand&subset=<?php echo CHARSET;?>' rel='stylesheet' type='text/css' />
<div id="container">
<div id="header">
  <?php if ($logo || $name) { ?>
	<div id="logo">
		<a href="<?php echo $home; ?>"><img src="<?php echo $logo; ?>" title="<?php echo $name; ?>" alt="<?php echo $name; ?>" />
			<span><?php echo $name; ?></span>
		</a>
	</div>
  <?php } ?>
  <div id="search">
  <?php if (isset($search)) {?>
	  <input type="text" name="search" placeholder="<?php if (isset($text_search)) echo $text_search; ?>" value="<?php if (isset($search)) echo $search; ?>" />
	  <?php } else {?>
		<?php if (isset($filter_name)) { ?>
			<input type="text" name="filter_name" value="<?php echo $filter_name; ?>" /> 
		<?php } else { ?>
			<input type="text" id="search_input" name="filter_name" value="<?php echo $text_search;?>"/>
		<?php } ?>
	  <?php }?>	
	  <div class="button-search"></div>
  </div>
  <?php echo $language; ?>
  <?php echo $currency; ?>
  <?php echo $cart; ?>
  <div id="welcome">
    <?php if (!$logged) { ?>
    <?php echo $text_welcome; ?>
    <?php } else { ?>
    <?php echo $text_logged; ?>
    <?php } ?>
  </div>
  <div class="links"><a href="<?php echo $home; ?>"><?php echo $text_home; ?></a><a href="<?php echo $wishlist; ?>" id="wishlist-total"><?php echo $text_wishlist; ?></a><a href="<?php echo $account; ?>"><?php echo $text_account; ?></a><a href="<?php echo $shopping_cart; ?>"><?php echo $text_shopping_cart; ?></a><a href="<?php echo $checkout; ?>"><?php echo $text_checkout; ?></a></div>
</div>
<?php if ($categories) { ?>
<?php function _opencart_menu(&$categories)
{
?>
    <?php foreach ($categories as $category) { ?>
    <li <?php if ($category['children']) {?> class="parent"<?php } ?>><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a>
      <?php if ($category['children']) { ?>
     <div>
		<?php if (isset($category['thumb'])) {?><div class="img"><img src="<?php echo $category['thumb'];?>"></div><?php }?>  
        <?php for ($i = 0; $i < count($category['children']);) { ?>
        <ul>
          <?php $j = $i + ceil(count($category['children']) / $category['column']); ?>
          <?php for (; $i < $j; $i++) { ?>
          <?php if (isset($category['children'][$i])) { ?>
          <li><a href="<?php echo $category['children'][$i]['href']; ?>"><?php echo $category['children'][$i]['name']; ?></a></li>
          <?php } ?>
          <?php } ?>
        </ul>
        <?php } ?>
      </div>  
      <?php } ?>
      
    </li>
    <?php } ?>
<?php };?>	
	
<?php function _opencart_mobile_menu(&$categories)
{
?>
	<?php foreach ($categories as $category) { ?>
	<li><a href="<?php echo $category['href']; ?>" <?php if ($category['children']) {?> class="parent"<?php } ?>><?php echo $category['name']; ?></a>
	  <?php if ($category['children']) { ?>
		<?php if (isset($category['thumb'])) {?><div class="img"><img src="<?php echo $category['thumb'];?>"></div><?php }?>  
		<ul class="submenu cols<?php echo $category['column'];?>">
		  <?php for ($i = 0; $i < count($category['children']);$i++) { ?>
		  <li><a href="<?php echo $category['children'][$i]['href']; ?>"><?php echo $category['children'][$i]['name']; ?></a></li>
		  <?php } ?>
		</ul>
	  <?php } ?>
	  
	</li>
	<?php } ?>
<?php };?>	
	
<div id="menu" class="clearfix not_mobile">
	<?php	
	$current_lang = $this->language->get('code');
	function generate_menu(&$categories, &$current_lang, &$opencart_categories)
	{
	?>	 
	<ul>
	<?php 
	foreach($categories as $category)
	{
		if (isset($category['categories'])) _opencart_menu($opencart_categories); else {
	?>
	<li>
		<a href="<?php if (isset($category['url'])) echo $category['url'];?>" target="<?php if (isset($category['text']['open_in'])) echo $category['text']['open_in'];?>">
			<?php if (isset($category['text'][$current_lang])) echo $category['text'][$current_lang];else if (isset($category['text'][key($category['text'])])) echo $category['text'][key($category['text'])];?>
		</a>
		<?php if (isset($category['children'])) { echo '<div>'; generate_menu($category['children'], $current_lang, $opencart_categories); echo '</div>';}?>
	</li>
	<?php } } ?>
	 </ul>	
    <?php } if (isset($_nico_settings['menu'])) generate_menu($_nico_settings['menu'], $current_lang, $categories);?>	  
</div>
	<div id="dl-menu" class="dl-menuwrapper">
		<button class="dl-trigger">Open Menu</button>
		<?php	
		$current_lang = $this->language->get('code');
		$first_level = true;
		function generate_mobile_menu(&$categories, &$current_lang, &$opencart_categories, &$first_level)
		{
		?>	 
		<ul<?php if ($first_level) {echo ' class="dl-menu"';$first_level = false;}?>>
		<?php 
		foreach($categories as $category)
		{
			if (isset($category['categories'])) _opencart_mobile_menu($opencart_categories); else {
		?>
		<li>
			<a href="<?php if(isset($category['url'])) echo $category['url'];?>">
				<?php if (isset($category['text'][$current_lang])) echo $category['text'][$current_lang];else if (isset($category['text'][key($category['text'])])) echo $category['text'][key($category['text'])];?>
			</a>
		<?php if (isset($category['children'])) { echo generate_menu($category['children'], $current_lang, $opencart_categories);}?>
		</li>
		<?php } } ?>
		 </ul>	
		<?php } generate_mobile_menu($_nico_settings['menu'], $current_lang, $categories, $first_level);?>	  
	</div>
<?php } ?>
<?php if (isset($error) && $error) { ?>
    
    <div class="warning"><?php echo $error ?><img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>
    
<?php } ?>
<div id="notification"></div>