function PopUp(url)
{
var chemin = url;
var left = chemin.substring(0,chemin.lastIndexOf('.'));
var right = chemin.substring(chemin.lastIndexOf('.'));
var h = 50;
var w = 50;
var html ='GTB
';
var top = (screen.height - 250) / 2;
var left = (screen.width - 250) / 2;
var p = 'top=' + top + ', left=' + left + ', width='+(parseInt(w))+', height='+(parseInt(h))+', menubar=no, scrollbars=no, resizable=no, statusbar=no';
popupImage = window.open('','popup_', p);
popupImage.document.open();
popupImage.document.write(html);
popupImage.document.close();
popupImage.focus();
};