如何把普通数组转换成JOIN数组？

已知数组
A = {'NAME:XXXX','YEAR:1990','OLD:21'}
A[0]="name:'XXX'"
A[1]="YEAR:1990"
A[2]="OLD:BB";

如果转换成
B={
NAME:'XXXX',
YEAR:1990,
OLD:21
};

语言未说明，假定你用javascript
‘JOIN数组’也假定是JSON的误拼。

<meta http-equiv="x-ua-compatible" content="IE=8" />
<script type="text/javascript">
A = ['NAME:XXXX','YEAR:1990','OLD:21']; //用{}会有语法错误
B={};
for(var i in A){
var v=A[i].split(':');
B[v[0]]=v[1];
}
document.write(JSON.stringify(B));
</script>

输出
{"NAME":"XXXX","YEAR":"1990","OLD":"21"}

代码兼容IE8，FF，chrome等