jQuery(elements) → jQuery

This function also accepts XML Documents and Window objects as valid arguments (even though they are not DOM Elements).
     Element, Array elements : DOM element(s) to be encapsulated by a jQuery object
Example:

Sets the background color of the page to black.

  $(document.body).css( "background", "black" );

Example:
  Hides all the input elements within a form.
  $(myForm.elements).hide()