This jQuery plugin makes DOM nodes sortable by mouse. You can additionally supply a great range of options to make them fit your needs.

All callbacks receive two arguments: The original browser event and a prepared ui object, view below for a documentation of this object (if you name your second argument 'ui'):

• ui.instance - the internal instance of the sortable
• ui.options - options used to initialize the sortable
• ui.position - current position of the helper
• ui.absolutePosition - current absolute position of the helper
• ui.helper - the current helper element (most often a clone of the item)
• ui.placeholder - the placeholder (if you defined one)

This method temporarily disables sortable functionality. It can later be reenabled by calling $(..).sortable("enable").

This method re-enables a previously disabled sortable.

This method removes the sortable functionality completely.

Calling this method produces a hash that can be appended to any url to easily submit a new item order back to the server.

It works by default by looking at the id of each item in the format 'setname_number', and it spits out a hash like "setname[]=number&setname[]=number".

You can also give in a second argument to custom define how the function works.

Custom trigger the reloading of all sortable items, causing new items to be recognized.

Calling this method refreshs the cached item positions of all sortables. This is usually done automatically by the script and slows down performance. Use wisely.