Question

is it possible to access a javascript object from all browser windows?
is there a global object to store data in?

for example: we want to put information in one window from multiple opened or later opened windows.

Thank you

Answer 1

You can pass the information to the target window via window.open , „javascript:“ using target and even initialize it, if it do not exists.

For example:
You have a page “mypage.html” and there a javascript object myObject, and want to pass from any window in the browser the information foo = ‘hello’.

mypage.html :

....
var myObject = {
        qs = {},
        init:  function()
            var b = window.location.href.split("?");
            if(b.length > 1){
                var p = b[1].split("&");
                for(var i = 0; i < p.length; i++){
                    var c = p[i].split("=");
                    qs[c[0]] = c[1];
                }
            }
            this.doFoo();
        },
        doFoo: function(){
            var foo = this.qs.foo;
            ....
        }
        ...
};
myObject.init();
...

the calling html’s:

window.open(
    'javascript:if(typeof(myObject) == "undefined"){'
    + 'setTimeout(\'window.location.href = "mypage.html?foo=hello"\', 10);}'
    + 'else{myObject.qs={}; myObject.qs.foo="hello"; myObject.doFoo();}'
    , "mypage"
);

the setTimeout is only needed for chrom, because he got the “window.location.href” property not at startup.