function check_on_others(th, div, textfield, count_field, count_value){

  if(th.value=="Others"){
  	if(th.checked == true){
		document.getElementById(div).style.display='inline';
    }else{
		document.getElementById(textfield).value='';
		document.getElementById(count_field).value=count_value;
		document.getElementById(div).style.display='none';
    }
  }
  
}