Onion skinning plugin for jQuery

onion-skin.js

(function( $ ){
 
  var methods = {
 
  	init : function( options ) {
			return this.each(function(){
				oSkin = $('<div class="onionSkin" style="width:100%;text-align:center;position:absolute;opacity:.5;display:none;" />');
 
				oImg = $('<img src="'+options.src+'" />');
				oImg.css(options.imgStyles);
				oSkin.prepend(oImg);
				$(this).prepend(oSkin);
 
				$(window.document).keyup(function(e) {
					
					// ctrl+o will toggle the onion skin
					if (e.ctrlKey && e.which === 79) oSkin.toggle();
					
					// ctrl+1 through ctrl+9 will set the opacity
					if (e.which >= 49 && e.which <= 57) {
						oSkin.css('opacity', (e.which - 48) * .1);
					}
					
				});
			});
		}
	}, oSkin;
 
	$.fn.onion = function( method ) {
 
		if ( methods[method] ) {
			return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
		} else if ( typeof method === 'object' || ! method ) {
			return methods.init.apply( this, arguments );
		} else {
			$.error( 'Method ' +  method + ' does not exist on jQuery.onion' );
		}    
 
};
 
})( jQuery );

package.json

{
  "name": "onion-skin",
  "version": "0.1.0"
}