<script>
function changePrice(obj) {
  var attrValue = obj.val();
  var attrCheckbox = $("input[name=insurance]", ".jq-checkbox").attr("checked");

  if (attrValue == 'vk_community' && attrCheckbox == true) {price = <? echo $config_extra['default_price_vk_community_insurance']; ?>;}

  if (attrValue == 'vk_community' && attrCheckbox != true) {price = <? echo $user['price_adv_vk_community'] != '0' ? $user['price_adv_vk_community'] : $config_extra['default_price_vk_community']; ?>;}
  if (attrValue == 'vk_share') {price = <? echo $user['price_adv_vk_share'] != '0' ? $user['price_adv_vk_share'] : $config_extra['default_price_vk_share']; ?>;}
  if (attrValue == 'vk_like') {price = <? echo $user['price_adv_vk_like'] != '0' ? $user['price_adv_vk_like'] : $config_extra['default_price_vk_like']; ?>;}
  if (attrValue == 'vk_friends') {price = <? echo $user['price_adv_vk_friends'] != '0' ? $user['price_adv_vk_friends'] : $config_extra['default_price_vk_friends']; ?>;}

  $("#budget").text( $("input[name=amount_users_limit]").attr("value") * price );
  $("#price").text( price );
}

     $(document).ready(function(){
        $.Placeholder.init({ color : "#aaa" });

        changePrice($("input[name=type]", ".jq-radio").first());
        /* Клик по типу задания */
        $("input[name=type]", ".jq-radio").click(function() {
          changePrice($(this));
        });

        /* Изменение количества заданий */
        $("input[name=amount_users_limit]").on('input', function() {
          changePrice($("input[name=type]:checked"));
        });

        /* Клик по страховке */
        $("input[name=insurance]", ".jq-checkbox").click(function() {
          changePrice($("input[name=type]:checked"));
        });

    });
  </script>