Working with Global Object stores
HTML
<button onclick='alert(JSON.stringify(window["id1"].data));'>
Click
</button>
JavaScript
var data1 = {
name: 'me',
othername: 'you'
};
var data2 = {
name: 'you',
othername: 'me'
};
var id1 = 'id1';
var id2 = 'id2';
if(!window[id1]) window[id1] = {data: data1};
if(!window[id1]) window[id1] = {data: data2};