[danik.js]

<div id="dv">dv</div>
<span id="spn">spn</span>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script>
var blaBlaBla= function(dv, spn){
        var inDiv = document.getElementById(dv);
    var inSpan = document.getElementById(spn);
        $([inDiv, inSpan]).hide();
};

blaBlaBla('dv', 'spn');

</script>