[jQuery] Animation improvements

[KidsKilla]

Hello everyone!

How can i stop an animation of 1 css rule without touching everything
other?
For example:
$('div').animate({width:'+=300'}, 'slow');
$('div').animate({opacity:'hide'}, 'slow');
$('button').click(function(){
   $('div').stop('width').animate({width:'-=300'}, 'slow');
});


And maybe it's good itea to have namespaces for animation just like at
events:
$("#block1").animate( { width: "90%"}, { queue: false, duration: 5000,
namespace:'blah-blah'
 } )
$("#block1").stop('.blah-blah');


And can i run animation agan (after .stop())?
$('div').animate({width:'+=300'}, 'slow').stop().run();