请哪位高手帮我把下面的VBScript改成javascript，在下感激不尽！

Question

<script language="VBScript">
function display1(num)
  dim imagename
  dim name
  dim total
  if(num<10) then
  if document.all("subtree"+chr(48+num)).style.display="none"  then
                          document.all("subtree"+chr(48+num)).style.display=""
  document.all("image"+chr(48+num)).src="image/t_sub.gif"
  document.all("img"+chr(48+num)).src="image/open.gif"
  else
 document.all("subtree"+chr(48+num)).style.display="none"
 document.all("image"+chr(48+num)).src="image/t_plus.gif"
 document.all("img"+chr(48+num)).src="image/close(1).gif"
   end if  
  end if
  if(num>9) then
  if document.all("subtree"+chr(49)+chr(48+num-10)).style.display="none"  then
                          document.all("subtree"+chr(49)+chr(48+num-10)).style.display=""
  document.all("image"+chr(49)+chr(48+num-10)).src="image/t_sub.gif"
  document.all("img"+chr(49)+chr(48+num-10)).src="image/open.gif"
  else
 document.all("subtree"+chr(49)+chr(48+num-10)).style.display="none"
 document.all("image"+chr(49)+chr(48+num-10)).src="image/t_plus.gif"
 document.all("img"+chr(49)+chr(48+num-10)).src="image/close(1).gif"
   end if  
  end if
  end function
</script>

Answer 1

try<script>
function display1(num){
var imagename
var name
var total
if(num<10){
if(document.all("subtree"+String.fromCharCode(48+num)).style.display=="none"){
document.all("subtree"+String.fromCharCode(48+num)).style.display=""
document.all("image"+String.fromCharCode(48+num)).src="image/t_sub.gif"
document.all("img"+String.fromCharCode(48+num)).src="image/open.gif"
}else{
document.all("subtree"+String.fromCharCode(48+num)).style.display="none"
document.all("image"+String.fromCharCode(48+num)).src="image/t_plus.gif"
document.all("img"+String.fromCharCode(48+num)).src="image/close(1).gif"
}
}
if(num>9){
if(document.all("subtree"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).style.display=="none"){
document.all("subtree"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).style.display=""
document.all("image"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).src="image/t_sub.gif"
document.all("img"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).src="image/open.gif"
}else{
document.all("subtree"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).style.display="none"
document.all("image"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).src="image/t_plus.gif"
document.all("img"+String.fromCharCode(49)+String.fromCharCode(48+num-10)).src="image/close(1).gif"
}
}
}
</script>

Answer 2

就一个if语句的转换，还有Chr(charcode)换成String.fromCharCode(49)，很简单啊，自己解决吧