IE6 = (navigator.appVersion.indexOf("MSIE 6.")==-1) ? false : true;
IE7 = (navigator.appVersion.indexOf("MSIE 7.")==-1) ? false : true;

if (IE6 || IE7){
    $("#ie-attention").slideDown();
}

$('#reference').mouseover(function(){
    $(this).attr('src', '/images/oldBrowser/popup/click_here_over.gif');
}).mouseout(function(){
    $(this).attr('src', '/images/oldBrowser/popup/click_here.gif');
});

$('#close-button').click(function(){
    $("#ie-attention").slideUp();
});