function classA(type)
{
	
		if (type == 1){
			
			document.getElementById("ct01").style.display = "block";
			document.getElementById("ct02").style.display = "none";
		}
		else if (type == 2){
			
			document.getElementById("ct01").style.display = "none";
			document.getElementById("ct02").style.display = "block";
			return;
		}
}
function classB(type)
{
	
		if (type == 1){
			
			document.getElementById("ct03").style.display = "block";
			document.getElementById("ct04").style.display = "none";
			document.getElementById("ct05").style.display = "none";
			document.getElementById("ct06").style.display = "none";
		}
		else if (type == 2){
			
			document.getElementById("ct03").style.display = "none";
			document.getElementById("ct04").style.display = "block";
			document.getElementById("ct05").style.display = "none";
			document.getElementById("ct06").style.display = "none";
			return;
		}else if (type == 3){
			
			document.getElementById("ct03").style.display = "none";
			document.getElementById("ct04").style.display = "none";
			document.getElementById("ct05").style.display = "block";
			document.getElementById("ct06").style.display = "none";
			return;
		}else if (type == 4){
			
			document.getElementById("ct03").style.display = "none";
			document.getElementById("ct04").style.display = "none";
			document.getElementById("ct05").style.display = "none";
			document.getElementById("ct06").style.display = "block";
			return;
		}
}
function classC(type)
{
	
		if (type == 1){			
			document.getElementById("ph01").style.display = "block";
			document.getElementById("ph02").style.display = "none";
			document.getElementById("ph03").style.display = "none";
			document.getElementById("ph04").style.display = "none";
		}
		else if (type == 2){			
			document.getElementById("ph01").style.display = "none";
			document.getElementById("ph02").style.display = "block";
			document.getElementById("ph03").style.display = "none";
			document.getElementById("ph04").style.display = "none";
		}else if (type == 3){			
			document.getElementById("ph01").style.display = "none";
			document.getElementById("ph02").style.display = "none";
			document.getElementById("ph03").style.display = "block";
			document.getElementById("ph04").style.display = "none";
		}else if (type == 4){			
			document.getElementById("ph01").style.display = "none";
			document.getElementById("ph02").style.display = "none";
			document.getElementById("ph03").style.display = "none";
			document.getElementById("ph04").style.display = "block";
			return;
		}
}