type="submit"

 <?php var_dump($_REQUEST); ?>
 <form action="" id="javascript_page">
     SHOP-ASIN <input type="text" name="shopasin">
     <button type="submit" name="whelp2017" value="whelp2017" >whelp2017-2016</button>
 </form>

 <div onclick="w()">w_pagination</div>
 <script>
     function w() {
         document.getElementById('javascript_page').submit();
     }
 </script>

<?php var_dump($_REQUEST); ?>
<form action="" id="javascript_page">
    SHOP-ASIN <input type="text" name="shopasin">
    <input type="submit" name="whelp2017" value="whelp2017">
</form>

<div onclick="w()">w_pagination</div>
<script>
    function w() {
        document.getElementById('javascript_page').submit();
    }
</script>

//array(2) { ["shopasin"]=> string(3) "www" ["whelp2017"]=> string(9) "whelp2017" }

//array(1) { ["shopasin"]=> string(4) "w123" }