// JavaScript Document
function yincang() {
  document.getElementById("cd1").style.visibility ="hidden"
  document.getElementById("cd2").style.visibility ="hidden"
  document.getElementById("cd3").style.visibility ="hidden"
  document.getElementById("cd4").style.visibility ="hidden"
  document.getElementById("cd5").style.visibility ="hidden"
  document.getElementById("cd6").style.visibility ="hidden"
  document.getElementById("cd7").style.visibility ="hidden"
}
function xianshi(divid) {
	document.getElementById ("zcd").style.cursor = "hand";
	yincang();	
	document.getElementById (divid).style.visibility="visible";
}