var Win = null;

function resizeWin()
{
    var Img = Win.document.getElementById('img');
    Win.resizeTo(Img.clientWidth + 100, Img.clientHeight + 100);
}

function Zoom(_url)
{
    Win = window.open(
        _url,
        '_blank',
        'resizable=no,scrollbars=yes,location=no,status=yes,width=750,height=550,toolbar=0'
    );
    Win.document.close();
}