salut
j'ai essayé de modifier le code si dessous de façon à obtenir une date sous la forme: YYYY-MM-DD (year-month-day) mais je ne suis pas arrivé à le faire. pouvez vous m'aidez? et merci
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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<script type='text/javascript'>
function show_calendar(str_target, str_datetime) {
   var arr_months = ["Janvier", "Février", "Mars", "Avril", "Mai", "Juin",
      "Juillet", "Août", "Septembre", "Octobre", "Novembre", "Décembre"];
   var week_days = ["Di", "Lu", "Ma", "Me", "Je", "Ve", "Sa"];
   var n_weekstart = 1; // day week starts from (normally 0 or 1)
 
// Si la date est invalide : Initialisation avec la date du jour
var test_date = /^(\d+)\/(\d+)\/(\d+)$/;
if (!test_date.exec(str_datetime))
{
var d = new Date();
 
var str_datetime = d.getDate()+ "/" +(d.getMonth() + 1) + "/"+  d.getYear();
 
}
 
   var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(str_datetime));
 
   var dt_prev_month = new Date(dt_datetime);
   dt_prev_month.setMonth(dt_datetime.getMonth()-1);
   var dt_next_month = new Date(dt_datetime);
   dt_next_month.setMonth(dt_datetime.getMonth()+1);
 
   var dt_prev_year = new Date(dt_datetime);
   dt_prev_year.setFullYear(dt_datetime.getFullYear()-1);
   var dt_next_year = new Date(dt_datetime);
   dt_next_year.setFullYear(dt_datetime.getFullYear()+1);
 
   var dt_firstday = new Date(dt_datetime);
   dt_firstday.setDate(1);
   dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
   var dt_lastday = new Date(dt_next_month);
   dt_lastday.setDate(0);
   var title_calendar=(str_target=='dd')?'DATE D\'ARRIVEE':'DATE DE DEPART';
 
   // html generation (feel free to tune it for your particular application)
   // print calendar header
   var StringYear=dt_datetime.getFullYear().toString().substring(dt_datetime.getFullYear().toString().length-2,dt_datetime.getFullYear().toString().length)
   var str_buffer = new String (
      "<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
      "<tr>\n<td bgcolor=\"#4682B4\">"+
      "<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
 
	//ENTETE TABLEAU
	"<tr>\n   <td bgcolor=\"blue\" style='text-align:center;color:white;font-family:verdana;font-weight:bold;font-size:11px;' colspan=\"6\">"+title_calendar+"<\/td>\n"+
	"<td bgcolor=\"blue\" style=\"text-align:center;color:navy;font-family:verdana;font-weight:bold;font-size:10px;background-color:silver;border:outset 2px white;cursor:pointer;\" onclick=\"document.getElementById('DivCalendar').style.display='none';\">X<\/td>\n "+
	"<\/tr>\n"+
 
 
 
// Ligne Année précédente / suivante
      "<tr>\n   <td bgcolor=\"blue\"><a href=\"javascript:show_calendar('"+
      str_target+"', '"+ dt2dtstr(dt_prev_year)+"');\">"+
      "<img src=\"images/prev.gif\" width=\"16\" height=\"16\" border=\"0\""+
      " alt=\"Année précédente\"></a></td>\n"+
      "   <td align=\"center\" bgcolor=\"blue\" colspan=\"5\">"+
      "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
      +" 20"+StringYear+"</font></td>\n"+
      "   <td bgcolor=\"blue\" align=\"right\"><a href=\"javascript:show_calendar('"
      +str_target+"', '"+dt2dtstr(dt_next_year)+"');\">"+
      "<img src=\"images/next.gif\" width=\"16\" height=\"16\" border=\"0\""+
 
      " alt=\"Année suivante\"></a></td>\n</tr>\n"+
 
// Ligne Mois précédent / suivant
      "<tr>\n   <td bgcolor=\"#4682B4\"><a href=\"javascript:show_calendar('"+
      str_target+"', '"+ dt2dtstr(dt_prev_month)+"');\">"+
      "<img src=\"images/prev.gif\" width=\"16\" height=\"16\" border=\"0\""+
      " alt=\"Mois précédent\"></a></td>\n"+
      "   <td align=\"center\" bgcolor=\"#4682B4\" colspan=\"5\">"+
      "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
      +arr_months[dt_datetime.getMonth()]+" 20"+StringYear+"</font></td>\n"+
      "   <td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:show_calendar('"
      +str_target+"', '"+dt2dtstr(dt_next_month)+"');\">"+
      "<img src=\"images/next.gif\" width=\"16\" height=\"16\" border=\"0\""+
      " alt=\"Mois suivant\"></a></td>\n</tr>\n"
 
   ); //end newstring
 
   var dt_current_day = new Date(dt_firstday);
 
   // print weekdays titles
   str_buffer += "<tr>\n";
   for (var n=0; n<7; n++)
      str_buffer += "   <td bgcolor=\"#87CEFA\">"+
      "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+
      week_days[(n_weekstart+n)%7]+"</font></td>\n";
   // print calendar table
   str_buffer += "</tr>\n";
   while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
      dt_current_day.getMonth() == dt_firstday.getMonth()) {
      // print row header
      str_buffer += "<tr>\n";
      for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
            if (dt_current_day.getDate() == dt_datetime.getDate() &&
               dt_current_day.getMonth() == dt_datetime.getMonth())
               // print current date
               str_buffer += "   <td bgcolor=\"#FFB6C1\" align=\"right\">";
            else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
               // weekend days
               str_buffer += "   <td bgcolor=\"#DBEAF5\" align=\"right\">";
            else
               // print working days of current month
               str_buffer += "   <td bgcolor=\"white\" align=\"right\">";
 
            if (dt_current_day.getMonth() == dt_datetime.getMonth())
               // print days of current month
               str_buffer += "<a style=\"cursor:pointer;\" onclick=\"document.getElementById('"+str_target+"').value='"+dt2dtstr(dt_current_day)+"'; document.getElementById('DivCalendar').style.display='none';\">"+
 
               "<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
            else
               // print days of other months
 
 
               str_buffer += "<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
            str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
 
            dt_current_day.setDate(dt_current_day.getDate()+1);
      }
      // print row footer
      str_buffer += "</tr>\n";
   }
   // print calendar footer
   str_buffer +=  "</tr>\n</td>\n</table>\n" ;
 
 
 
   fenCalendrier=document.getElementById('DivCalendar');
   fenCalendrier.innerHTML=str_buffer;
   fenCalendrier.style.top=document.getElementById(str_target).offsetTop+"px";
   fenCalendrier.style.left=Number(document.getElementById(str_target).offsetLeft)+Number(document.getElementById(str_target).offsetWidth)+"px";
   fenCalendrier.style.display="block"
 
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
   var re_date = /^(\d+)\/(\d+)\/(\d+)$/;
   if (!re_date.exec(str_datetime))
      return alert("Invalid Datetime format: "+ str_datetime);
   return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1, RegExp.$4, RegExp.$5, RegExp.$6));
}
 
 
 
/***********************************
* Formatage de date pour affichage *
***********************************/
 
function dt2dtstr (dt_datetime) {
   var FormatedDate=""
 
   FormatedDate+=(dt_datetime.getDate().toString().length==1)?"0"+dt_datetime.getDate().toString():dt_datetime.getDate().toString();
   FormatedDate+="/";
 	FormatedDate+=((dt_datetime.getMonth()+1).toString().length==1)?"0"+(dt_datetime.getMonth()+1).toString():(dt_datetime.getMonth()+1).toString();
	FormatedDate+="/";
	FormatedDate+="20"+dt_datetime.getFullYear().toString().substring(dt_datetime.getFullYear().toString().length-2,dt_datetime.getFullYear()).toString()
 
	return FormatedDate;
}
 
function dt2tmstr (dt_datetime) {
   return (new String (
         dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
}