// JavaScript Document
function show(num){
		document.getElementById("ceng"+num).style.display="";
}
function dis(num){
		document.getElementById("ceng"+num).style.display="none";
}



function s(num){
		document.getElementById("c"+num).style.display="";
}
function d(num){
		document.getElementById("c"+num).style.display="none";
}