눈물꽃`s thoth



function setapplicateday(){
 if(document.getElementById("businessbeginyear") != null){  var businessbeginyear =document.getElementById("businessbeginyear");}
 if(document.getElementById("businessbeginmonth") != null){  var businessbeginmonth =document.getElementById("businessbeginmonth");}
 if(document.getElementById("businessbeginday") != null){  var businessbeginday =document.getElementById("businessbeginday");}
 if(document.getElementById("businessendyear") != null){  var businessendyear =document.getElementById("businessendyear");}
 if(document.getElementById("businessendmonth") != null){  var businessendmonth =document.getElementById("businessendmonth");}
 if(document.getElementById("businessendday") != null){  var businessendday =document.getElementById("businessendday");}

 var selectbeginyear = businessbeginyear.options[businessbeginyear.selectedIndex].value;
 var selectbeginmonth = businessbeginmonth.options[businessbeginmonth.selectedIndex].value;
 var selectbeginday = businessbeginday.options[businessbeginday.selectedIndex].value;
 var selectendyear = businessendyear.options[businessendyear.selectedIndex].value;
 var selectendmonth = businessendmonth.options[businessendmonth.selectedIndex].value;
 var selectendday = businessendday.options[businessendday.selectedIndex].value;

 
 var startDate = new Date(selectbeginyear,selectbeginmonth-1,selectbeginday);

 var endDate = new Date(selectendyear,selectendmonth-1,selectendday);
 var result = (endDate.getTime() - startDate.getTime())/(1000*60*60*24);

 document.getElementById("date").value = result;
   

}