[ JavaScript ] 날자 구하기

function makeDate(dayDiff ) {

   var curDate = new Date( );
   var diffDate = new Date(curDate.getFullYear(),curDate.getMonth(),curDate.getDate() );
   diffDate.setDate(diffDate.getDate() + dayDiff);
   var strCurDate= curDate.getFullYear() + (curDate.getMonth()+101 +"").substring(1,3) +(curDate.getDate()+100 +"").substring(1,3);
   var strDiffDate= diffDate.getFullYear() + "년" + (diffDate.getMonth()+101 +"").substring(1,3) + "월" +(diffDate.getDate()+100 +"").substring(1,3) + "일";
   //orderForm.txtInDate.value = strCurDate;
   orderForm.txtInDate.value=strDiffDate;
}