function impression()
{
 /*var codeh1 = '<div id="contenu_gen"><table name="tab1" width="100%" height="100%" border="0" cellpadding="0" cellspacing="0" summary="" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0"><tr><td width="50%">&nbsp;</td><td background="../images/fond.gif" align="center"><img src="../trait.gif" border="0" width="775" height="1" alt="" name="trait1"><table border="0" align="center" cellpadding="0" cellspacing="0" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0"><tr><td></td><td background="../images/fond.gif" width="50">&nbsp;</td><td background="../images/fond.gif" width="675"><table class="contenu" cellpadding="0" cellspacing="0" width="100%"><tr><td>';
 var codeh2 = '<div id="contenu_gen"><table name="tab1" width="600" height="100%" border="0" cellpadding="0" cellspacing="0" summary="" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0" align="center"><tr><td width="50%">&nbsp;</td><td background="../images/fond.gif" align="center"><img src="../trait.gif" border="0" width="600" height="1" alt="" name="trait1"><table border="0" align="center" cellpadding="0" cellspacing="0" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0"><tr><td></td><td background="../images/fond.gif" width="50">&nbsp;</td><td background="../images/fond.gif" width="600"><table class="contenu" cellpadding="0" cellspacing="0" width="100%"><tr><td>';
   */
 /*alert("teto");
 window.document.getElementById("centrage").innerHTML = codeh2;
 alert("pause");
 window.document.getElementById("centrage").innerHTML = codeh1;*/
 
 window.document.images["trait1"].width=600;

 print();

 window.document.images["trait1"].width=775;
 
}