Felt sad that <blink> was deprecated? Cry no more!

blink.js

setInterval(function(){
    var elems = document.getElementsByTagName("blink");
    for (var i=0; i<elems.length; i++)
    {
        if (elems[i].style.visibility=="visible")
        {
            elems[i].style.visibility="hidden";
        }
        else
        {
            elems[i].style.visibility="visible";
        }
    }
}, 500);