function PrintThisPage()
{
var sOption="toolbar=yes,location=yes,directories=yes,menubar=yes,";
sOption+="scrollbars=yes,width=800,height=600";
var sWinHTML = document.getElementById('middle').innerHTML;
var winprint=window.open("","",sOption);
winprint.document.open();
winprint.document.write('\n\nImprimer');
winprint.document.write(sWinHTML);
winprint.document.write('');
winprint.document.close();
winprint.focus();
}