쇼핑몰에서 배너를 롤링되게 만들었는데

배너를 클릭하면 현재창으로 뜨고 있습니다. 이것을 클릭하면 새창으로 뜨게 하는 방법을 모르겠네요... ㅠ ㅠ

도움 좀 부탁 드립니다.... 

아래 소스에서 어디를 건드려야할지를 모르겠네요....

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<table width="550" height="320" border="0" cellspacing="0" cellpadding="0">

<tr>

<td>

<!--메인배너 링크변경 시작-->

<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>

<script type="text/javascript">

$(function() {

  $('#ilgan_main_banner #ilgan_main_banner1').click(function(){

    location.href = '/front/php/product.php?product_no=4754&main_cate_no=&display_group=';

  });

  $('#ilgan_main_banner #ilgan_main_banner2').click(function(){

    location.href = '/front/php/product.php?product_no=4606&main_cate_no=&display_group=';

  });

  $('#ilgan_main_banner #ilgan_main_banner3').click(function(){

    location.href = '/front/php/product.php?product_no=4534&main_cate_no=&display_group=';

  });

  $('#ilgan_main_banner #ilgan_main_banner4').click(function(){

    location.href = '/front/php/product.php?product_no=5254&main_cate_no=&display_group=';

  });

<!--메인배너 링크변경 끝-->

  var old_ban_img='1';

  var banb = 1;

  var interval_banbest;

  setInterval_banbest();

  function setInterval_banbest(){

    interval_banbest = setInterval(function(){ banbest_change(); },3000);

  }

  function banbest_change(){

   if( banb == 4 ) banb = 1;

   else  banb++;

   Comeon3(banb);

  }

  function Comeon3(banb){

            $('#ilgan_main_banner #ilgan_main_banner'+old_ban_img).css('display', 'none');

            $('#ilgan_main_banner #ilgan_main_banner'+banb).css('display', '');

            old_ban_img=banb;

  }

});

</script>

<div id="ilgan_main_banner" style="width: 550px; height: 320px; overflow: hidden;">

<div id="ilgan_main_banner1" style="width: 550px; height: 320px; background: url(/web/upload/img/main_banner/banner1.jpg) no-repeat; cursor: pointer; "></div>

<div id="ilgan_main_banner2" style="width: 550px; height: 320px; background: url(/web/upload/img/main_banner/banner2.jpg) no-repeat; display: none;  cursor: pointer; "></div>

<div id="ilgan_main_banner3" style="width: 550px; height: 320px; background: url(/web/upload/img/main_banner/banner3.jpg) no-repeat; display: none;  cursor: pointer; "></div>

<div id="ilgan_main_banner4" style="width: 550px; height: 320px; background: url(/web/upload/img/main_banner/banner4.jpg) no-repeat; display: none;  cursor: pointer; "></div>

</div>

</td></tr></table>