/* auteur: COSMOS 2000 */
/* Date de création: 2003-04-13 */

function setDate(str) {
if (str=="   ") return;
mnth1 = document.forms[0].month.value;
mnth = mnth1;
mnth++;
year = document.forms[0].year.value;
dateStr = mnth+"/"+str+"/"+year;
dateStr = trim(dateStr);
document.forms[1].dateField.value = dateStr;
}

function setDateWithSelect() {

var mnth1 = document.forms[0].selectMonth[document.forms[0].selectMonth.selectedIndex].value;
var mnth = mnth1;
mnth++;
var year = document.forms[0].selectYear[document.forms[0].selectYear.selectedIndex].value;

var mnthName = getMonthName(mnth1);
 document.forms[0].month.value=mnth1;
 document.forms[0].myMonth.value= mnthName;
 document.forms[0].year.value=year;
 document.forms[0].myYear.value=year;

var str = mnth+"/1/"+year;
var dt = new Date(str);
var dayOfWeek = dt.getDay();

var noOfDays = getNoOfDaysInMnth(mnth,year);

 fillDates(dayOfWeek+1,noOfDays);

}

function trim(str) {
res="";
for(var i=0; i< str.length; i++) 
if (str.charAt(i) != " ") res +=str.charAt(i);

return res;
}

function getMonthName(mnth) {
return months[mnth];
}

function getNoOfDaysInMnth(mnth,yr) {
 rem = yr % 4;
if(rem ==0) leap = 1; 
else leap = 0;

noDays=0;
if ( (mnth == 1) || (mnth == 3) || (mnth == 5) || 
(mnth == 7) || (mnth == 8) || (mnth == 10) ||
 (mnth == 12)) noDays=31;
else if (mnth == 2) noDays=28+leap;
else noDays=30;

return noDays;
}

function fillDates(dayOfWeek1,noOfDaysInmnth) {

 for(var i=1; i<43; i++) {
   str = "s"+i;
   document.forms[0].elements[str].value="   ";
 }

 startSlotIndx = dayOfWeek1;
 slotIndx = startSlotIndx;

 for(var i=1; i<(noOfDaysInmnth+1); i++) {
  slotName = "s"+slotIndx;

  val="";
  if (i<10) {
    val = " "+i+" ";
  } else {
    val = i;
  }

  document.forms[0].elements[slotName].value = val;
  slotIndx++;
 }
  
}//fillDates()
 
/**
 * The function that is called at the time of loading the page.
 * This function displays Today's date and also displays the 
 * the calendar of the current month.
 */
function thisMonth() {

  dt = new Date();
  mnth  = dt.getMonth(); /* 0-11*/
  dayOfMnth = dt.getDate(); /* 1-31*/
  dayOfWeek = dt.getDay(); /*0-6*/
  yr = dt.getFullYear(); /*4-digit year*/
  //alert("month:"+(mnth+1)+":dayofMnth:"+dayOfMnth+":dayofweek:"+dayOfWeek+":year:"+yr);
  mnthName = getMonthName(mnth)+ " ";
  document.forms[0].month.value = mnth;
  document.forms[0].year.value = yr;
  document.forms[0].currMonth.value = mnth;
  document.forms[0].currYear.value = yr;
  
 document.forms[0].myMonth.value = mnthName;
 document.forms[0].myYear.value = yr;

 document.forms[0].selectMonth.selectedIndex=mnth;
 document.forms[0].selectYear.selectedIndex = yr-1583;

 document.forms[1].dateField.value = (mnth+1)+"/"+dayOfMnth+"/"+yr;

  startStr = (mnth+1)+"/1/"+yr;
  dt1 = new Date(startStr);
  dayOfWeek1 = dt1.getDay(); /*0-6*/

  noOfDaysInMnth = getNoOfDaysInMnth(mnth+1,yr);
  fillDates(dayOfWeek1+1,noOfDaysInMnth);
 
document.forms[0].elements["s"+(dayOfMnth+dayOfWeek1)].focus();

}//thisMonth()
/**
 * The function that will be used to display the calendar of the next month.
 */
function nextMonth() {
var currMnth = document.forms[0].month.value;
var currYr = document.forms[0].year.value;
if (currMnth == "11") nextMnth = 0;
else {nextMnth=currMnth;nextMnth++;}

 mnthName = getMonthName(nextMnth);
 document.forms[0].month.value=nextMnth;
 document.forms[0].myMonth.value= mnthName;
document.forms[0].selectMonth.selectedIndex=nextMnth;

 str = (nextMnth+1)+"/1/"+currYr;
 dt = new Date(str);
 dayOfWeek = dt.getDay();

 noOfDays = getNoOfDaysInMnth(nextMnth+1,currYr);

 fillDates(dayOfWeek+1,noOfDays);
 
}//nextMonth()
/**
 * The method to display the calendar of the previous month.
 */
function prevMonth() {
var currMnth = document.forms[0].month.value;
var currYr = document.forms[0].year.value;
if (currMnth == "0") nextMnth = 11;
else {nextMnth=currMnth;nextMnth--;}

 mnthName = getMonthName(nextMnth);
 document.forms[0].month.value=nextMnth;
 document.forms[0].myMonth.value= mnthName;
document.forms[0].selectMonth.selectedIndex=nextMnth;

 str = (nextMnth+1)+"/1/"+currYr;
 dt = new Date(str);
 dayOfWeek = dt.getDay();

 noOfDays = getNoOfDaysInMnth(nextMnth+1,currYr);

 fillDates(dayOfWeek+1,noOfDays);
 
}//prevMonth()

function nextYear() {
var currMnth = document.forms[0].month.value;
var currYr = document.forms[0].year.value;
currYr++;
document.forms[0].year.value=currYr;
document.forms[0].myYear.value=currYr;
document.forms[0].selectYear.selectedIndex=currYr-1583;

 str = (currMnth+1)+"/1/"+currYr;
 dt = new Date(str);
 dayOfWeek = dt.getDay();

 noOfDays = getNoOfDaysInMnth(currMnth+1,currYr);

 fillDates(dayOfWeek+1,noOfDays);

}

function prevYear() {
var currMnth = document.forms[0].month.value;
var currYr = document.forms[0].year.value;
currYr--;
document.forms[0].year.value=currYr;
document.forms[0].myYear.value=currYr;
document.forms[0].selectYear.selectedIndex=currYr-1583;

 str = (currMnth+1)+"/1/"+currYr;
 dt = new Date(str);
 dayOfWeek = dt.getDay();

 noOfDays = getNoOfDaysInMnth(currMnth+1,currYr);

 fillDates(dayOfWeek+1,noOfDays);

}