function fen(page) {
window.open(page,'fen','width=500,height=300,toolbar=false,scrollbars=false')}

function popup(page)
{
window.open(page,'popup','width=450,height=450,toolbar=false,scrollbars=false')
}
/* popup01 pour une fenêtre de taille différente, éventuellement */
function popup01(page)
{
window.open(page,'popup','width=550,height=200,toolbar=false,scrollbars=false')
}
function popup02(page)
{
window.open(page,'popup','width=550,height=250,toolbar=false,scrollbars=false')
}
function popup03(page)
{
window.open(page,'popup','width=550,height=200,toolbar=false,scrollbars=false')
}
function popup04(page)
{
fencent=window.open(page,'popup','width=475,height=500,toolbar=no,scrollbars=yes')
fencent.document.close();
fencent.focus();

}