This code is part of the the jQuery Base? module.
Object Modification
set(Key,Value)
Sets the 'Key' parameter of every element to 'Value'. Similar to doing: element.Key = Value;
Example:
$("input").set("value","test12");
set(Hash)
Takes a hash of Key/Value pairs and runs set(Key,Value) on every matched element.
Example:
$("input").set({value:"test",foo:bar});