Snap.svg alternate click plugin

alternate_clicks.js

/**
 * Use like .click() but accepts a second callback
 * 
 * example:
 *  element.alternateClick(function() {}, function() {});
 */
Snap.plugin(function(Snap, Element) {
	Element.prototype.alternateClick = function(first, second) {
		var i = 0;
		this.click(function() {
			if(i++ % 2 === 0) {
				first();
			}
			else {
				second();
			}
		});
	};
});