/* プルダウン */

function open_crp(){
	document.getElementById('list-corporate').style.visibility='visible';
}
function close_crp(){
	document.getElementById('list-corporate').style.visibility='hidden';
}
function open_bus(){
	document.getElementById('list-business').style.visibility='visible';
}
function close_bus(){
	document.getElementById('list-business').style.visibility='hidden';
}
function open_tpc(){
	document.getElementById('list-topics').style.visibility='visible';
}
function close_tpc(){
	document.getElementById('list-topics').style.visibility='hidden';
}