function dayDiffer (fromYMD, toYMD) {
/*
alert (fromDate.substring (0, 4)) ;
alert (fromDate.substring (4, 6)) ;
alert (fromDate.substring (6, 8)) ;
*/


    var fDay = new Date();
    var tDay   = new Date();

    var fy = fromYMD.substring (0, 4) ;
    var fm = Number(fromYMD.substring (4, 6)) ;
    var fd = Number(fromYMD.substring (6, 8)) ;
    var ty = toYMD.substring (0, 4) ;
    var tm = Number(toYMD.substring (4, 6)) ;
    var td = Number(toYMD.substring (6, 8)) ;

    fDay.setFullYear(fy);
    fDay.setMonth(fm-1);
    fDay.setDate(fd);

    tDay.setFullYear(ty);
    tDay.setMonth(tm-1);
    tDay.setDate(td);


    var diff = tDay.getTime() - fDay.getTime();
//alert ('diff -> ' + diff) ;

    var days = Math.round(diff / (1000 * 60 * 60 * 24)); //ÇÏ·ç°è»ê
//alert ('days -> ' + days) ;

//    var months = Math.floor(diff / (1000 * 60 * 60 * 24 * 30)); //ÇÏ·ç°è»ê
//alert ('months -> ' + months) ;
return days;
}

function set2SizePad (arg) {

	if (eval (arg) < 10 || arg.length == 1)
		return '0' + arg ;
	else
		return arg ;
}

/*
	³â¿ùÀÏÀ» ÃʱâÈ­ÇÑ´Ù.
*/
function resetYMD(yearObject,monthObejct,dayObjet){

  yearObject.value = yearObject[0].value;
  resetMMDD(monthObejct,dayObjet);
}
function resetMMDD(monthObejct,dayObjet){

  monthObejct.value = monthObejct[0].value;
  dayObjet.value = dayObjet[0].value;
  //document.all.mainForm.reset()
}
function initializeDate(yearObject,monthObejct,dayObjet){
  dayObjet.value = dayObjet[0].value;

  if(yearObject.value == ""){
    alert("¿¬µµ¸¦ ¼±ÅÃÇÏ¿© ÁֽʽÿÀ.");
    yearObject.focus();
    monthObejct.value = monthObejct[0].value;
    return false;
  }
  if(monthObejct.value == ""){
    alert("¿ùÀ» ¼±ÅÃÇØ ÁÖ¼¼¿ä.");
    monthObject.focus();
    return false;
  }
   var yyyy = yearObject.value;
   var mm = monthObejct.value;
   var end = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
   if((yyyy%4 == 0 && yyyy%100 != 0) || yyyy % 400 == 0){
     end[1] = 29;
   }
  for (i = dayObjet.length - 1; i > -1; i--) {
	dayObjet.options[i].value	= null ;
	dayObjet.options[i]			= null ;
  }
  dayObjet.options[0]			= new Option("--",1) ;
  dayObjet.options[0].value	    = "" ;
  for(i=1; i<=end[mm-1]; i++){
    newOpt = document.createElement("OPTION");
	newOpt.text = i;
	//10ÀÏ º¸´Ù ÀÛÀ» °æ¿ì "0"À» Ãß°¡ÇÑ´Ù.
	if(i<10)    newOpt.value = "0"+i;
    else        newOpt.value = i;
    dayObjet.options.add(newOpt);
  }

}