$(document).ready(function(){
    $("ul.navigation").find("a").each(function(){
        if(location.href === this.href) {
            $(this).addClass("on").click(function() { return false; });
        }
    });
    
    $(".swap")
        .mouseover(function() {
            var h = $(this).height();
            $(this).css("background-position","0 " + (h-(h*2)+1) + "px");
        })
        .mouseout (function() {
            $(this).css("background-position","0 0");
        }
    );
    
    $("a.delete_action").click(function(){
        if (confirm("Are you sure that you want to remove this item? (This cannot be undone.)")) {
            return true;
        }
        return false;
    });
    
});