JQuery - javascript a jquery

<script>

function myFunction(imgs) {

    var expandImg = document.getElementById("expandedImg");

    var imgText = document.getElementById("imgtext");

    expandImg.src = imgs.src;

    imgText.innerHTML = imgs.alt;

    expandImg.parentElement.style.display = "block";

}

</script>

function myFunction(imgs) {

    var expandImg = $('#expandedImg');

    var imgText = $('#imgtext');

    $(expandImg).attr('src', $(imgs).attr('src'));

    $(imgText).html(imgs.attr('alt'));

    $(expandImg).parent().css('display', 'block');

}