/* ******************************************************************************
 * hoverintent
 *
 * Works like mouseover, but instead of firing immediately when an object
 * is mouseover'ed, it tries to determine when the user actually _intends_
 * to have the pointer hover over the object.  In other words, it's a lot
 * like mouseover with a delay before firing, and if the pointer moves
 * before hoverintent can fire, it doesn't fire at all.
 *
 * Found from jQuery UI Ticket #3614
 * http://dev.jqueryui.com/ticket/3614
 */

var cfg = ($.hoverintent = {
	sensitivity: 7,
	interval: 100
});
	
$.event.special.hoverintent = {
	setup: function() {
		$(this).bind("mouseover", jQuery.event.special.hoverintent.handler);
	},
	teardown: function() {
		$(this).unbind("mouseover", jQuery.event.special.hoverintent.handler);
	},
	handler: function(event) {
		event.type = "hoverintent";
		var self = this,
			args = arguments,
			target = $(event.target),
			cX, cY, pX, pY;
			

		function track(event) {
			cX = event.pageX;
			cY = event.pageY;
		};
		pX = event.pageX;
		pY = event.pageY;
		function clear() {
			target.unbind("mousemove", track).unbind("mouseout", arguments.callee);
			clearTimeout(timeout);
		}
		function handler() {
			if ( ( Math.abs(pX-cX) + Math.abs(pY-cY) ) < cfg.sensitivity ) {
				clear();
				jQuery.event.handle.apply(self, args);
			} else {
				pX = cX; pY = cY;
				timeout = setTimeout(handler, cfg.interval);
			}
		}
		var timeout = setTimeout(handler, cfg.interval);
		target.mousemove(track).mouseout(clear);
		return true;
	}
};