Mootools - $ function is not available, although $$ works fine

Question

Mootools

I'm writing an extension for chrome. I connect mootools. Inline or external js.

I use the sorry version with compatability.

The $$ function is available, and it produces
bound: function ()
{
return document.querySelectorAll.apply(document, arguments)
}

But the $ function (or document.id, whichever I understand) is undefined. How to treat?

On the page, by the way, Mootools is also there. Maybe a conflict is possible?

Answer 1

Usually compatibility means that the library tries not to pollute the global namespace. This is especially true for the $ function, because a function with this name is used by at least 3 libraries.