// JavaScript Document
var s=5;
var minheight=40;
var maxheight=60;
function shoppingcat(){
var key = document.getElementById("key").innerText;
if(key=="疾病展开治疗"){
   content.style.pixelHeight+=s;
   if(content.style.pixelHeight<maxheight){
    setTimeout("shoppingcat();",1);
   }else{
    document.getElementById("key").innerText="关闭";
   }
}else{
   content.style.pixelHeight-=s;
   if(content.style.pixelHeight>minheight){
    setTimeout("shoppingcat();",1);
   }else{
    document.getElementById("key").innerText="疾病展开治疗";
   }
}
}