Behavior for Infinite Scroll jQuery plugin: infinite scrolling doesn't begin until after a manual trigger is clicked.

jquery.infinitescroll.sr.js

/*
  --------------------------------
	Infinite Scroll Behavior
	Simply Recipes Mobile Style
	: Infinite scroll waits for a one-time manual trigger
	--------------------------------
	by Jesse Gardner, http://plasticmind.com
*/

$.extend($.infinitescroll.prototype,{
	_setup_simplyrecipes: function infscr_setup_simplyrecipes () {
		var instance = this;
		var opts = this.options;
		this._binding('bind');

		this._numScrolls = 0; // Register a scroll counter

		this.options.loading.start = function (opts) {
			if(instance._numScrolls==0) { // First scroll requires manual click
				$(opts.navSelector).show();
				$(opts.nextSelector).bind('click', function(e) {
					e.preventDefault();
					$(opts.navSelector).fadeOut('fast');
					opts.loading.msg.appendTo(opts.loading.selector).fadeIn('fast');
					instance.beginAjax(opts);
				});
			} else { // Anything after that happens automatically
				$(opts.navSelector).hide();
				opts.loading.msg.appendTo(opts.loading.selector).show(opts.loading.speed);
				instance.beginAjax(opts);
			}
		}
		this.options.loading.finished = function() {
			opts.loading.msg.fadeOut('fast');
			instance._numScrolls++;
		}
		return false;
	}
});