onMulti

function SomeWidget( $elem ) {
	this.$elem = $elem;
}

SomeWidget.prototype = {
	constructor: SomeWidget,

	renderTo: function( target ) {
		$( target ).append( this.$elem.on( "click mousemove", this ) );
	},

	mousemove: function( e ) {

	},

	click: function( e ) {

	},

	handleEvent: function( e ) {
		return this[ e.type ].apply( this, arguments );
	}
};

var widget = new SomeWidget();


$(elems).onMulti("click mouseover", widget);