function displayMode(target,status){
	switch(target){
		case 'date':
		var targetBlock1=document.getElementById('date-open');
		var targetBlock2=document.getElementById('date-close');
		var targetBlock3=document.getElementById('date-list');
		break;
		case 'venue':
		var targetBlock1=document.getElementById('venue-open');
		var targetBlock2=document.getElementById('venue-close');
		var targetBlock3=document.getElementById('venue-list');
		break;
		case 'place':
		var targetBlock1=document.getElementById('place-open');
		var targetBlock2=document.getElementById('place-close');
		var targetBlock3=document.getElementById('place-list');
		break;
		case 'faculty':
		var targetBlock1=document.getElementById('faculty-open');
		var targetBlock2=document.getElementById('faculty-close');
		var targetBlock3=document.getElementById('faculty-list');
		break;
		case 'announce':
		var targetBlock1=document.getElementById('announce-open');
		var targetBlock2=document.getElementById('announce-close');
		var targetBlock3=document.getElementById('announce-list');
		break;
	}
	if(status =='open'){
		targetBlock1.style.display='none';
		targetBlock2.style.display='block';
		targetBlock3.style.display='block';
	}else if(status =='close'){
		targetBlock1.style.display='block';
		targetBlock2.style.display='none';
		targetBlock3.style.display='none';
	}
}