<script>
var strArr = "()()((()())";
function change(str)
{
var a=str.split("");
var c=0;
var stack=[];
var match={
"(":")",
"{":"}",
"<":">",
"【":"】"
}
for(var i=0;i<a.length;i++)
if(match[a[i]]){
stack.push([a[i],i]);
}
else if(a[i]==")"||a[i]=="}"||a[i]==">"||a[i]=="】"){
if(!stack.length)continue;
var tmp=stack.pop();
if(match[tmp[0]]==a[i])a[i]="]",a[tmp[1]]="[";
else stack.push(tmp);
}
return a.join("") ;
}
alert(change(strArr));
</script>

<script>
var strArr = "()()((()())";
var o = strArr;
var r = o;
do{
o = r;
r = o.replace(/\(([^()]*)\)/g,function(s,a){return '['+a+']'});
}while(o!=r);
alert(r);
</script>