// JavaScript Document
function showhidediv(id){
  try{
    var sbtitle=document.getElementById(id);
    if(sbtitle){
      if(sbtitle.style.display=='block'){
        sbtitle.style.display='none';
      }else{
        sbtitle.style.display='block';
      }
    }
  }catch(e){}
}

function showHidekey(id) {
	var key1 = document.getElementById(id);
	if( key1.className == "qanda_close_key") {
		key1.className = "qanda_open_key";
	}
	else if( key1.className == "qanda_open_key" ) {
		key1.className = "qanda_close_key";
	}

}