Learn Javascript?

[neltan]

Dear all,

I learn javascript for quite a few year. But now I find that Javascript change much. And I'm not understand it structure...

Something confuse me when I use ActiveWidget (javascript datagrid)
e.g. var obj = new Active.Controls.Grid;
e.g. Active.Formats.Number.create = function(){...}
e.g. $import("namespaces/grid.js");

I've never know these syntax. When javascript add dhtml and css. I'm really lost...

Is there any good resource for learning javascript? (website or good books).

Thanks a lot!!