function popWindow(url)
{
checkWin = window.open( url, 'gallery', 'left=0,top=0,width=660,height=600,menubar=no,scrolling=auto,resizable=no,toolbar=no,location=no,directories=no,status=no');
checkWin.document.close();
checkWin.focus();
}

function art(url)
{
checkWin = window.open( url, 'art', 'left=0,top=0,width=660,height=660,menubar=no,scrolling=auto,resizable=no,toolbar=no,location=no,directories=no,status=no');
checkWin.document.close();
checkWin.focus();
}

function books(url)
{
checkWin = window.open( url, 'books', 'left=0,top=0,width=488,height=570,menubar=no,scrolling=no,scrollbars=no,resizable=no,toolbar=no,location=no,directories=no,status=no');
checkWin.document.close();
checkWin.focus();
}