function showzx(id) {
var tips=document.getElementById(id);  
	if (tips.style.display=="block"){ tips.style.cssText = "display: none;" }
	else { tips.style.cssText = "display: block;" }
}

function hide(d){document.getElementById(d).style.display="none";}
function show(d){document.getElementById(d).style.display="";}
function showdv(d){
h= d=="sc2"?"sc1":"sc2";
h1=d=="sc2"?"shan1":"shan2";
show(d.replace("sc",'shan'))
show(d)
hide(h)
hide(h1)
}