Script tag A - href - js

 **** HTML

<div class="list-group-item">

    <a class="selected" href="/admin.php?op=admin__template__header">Header</a>

</div>

**** JS

$(".list-group-item > a").click(function (e) {

    e.preventDefault();

    var href = $(this).attr("href");

    window.open(href);     A 

    ## Has target (Open new tab)

    ---- Choose:  A OR B

    window.open(href,"_self");      B

    ## No target (Current tab)

    return false;

});