(function($){

	/* hoverIntent by Brian Cherne */

	$.fn.hoverIntent = function(f,g) {

		// default configuration options

		var cfg = {

			sensitivity: 7,

			interval: 100,

			timeout: 0

		};

		// override configuration options with user supplied object

		cfg = $.extend(cfg, g ? { over: f, out: g } : f );



		// instantiate variables

		// cX, cY = current X and Y position of mouse, updated by mousemove event

		// pX, pY = previous X and Y position of mouse, set by mouseover and polling interval

		var cX, cY, pX, pY;



		// A private function for getting mouse position

		var track = function(ev) {

			cX = ev.pageX;

			cY = ev.pageY;

		};



		// A private function for comparing current and previous mouse position

		var compare = function(ev,ob) {

			ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);

			// compare mouse positions to see if they've crossed the threshold

			if ( ( Math.abs(pX-cX) + Math.abs(pY-cY) ) < cfg.sensitivity ) {

				$(ob).unbind("mousemove",track);

				// set hoverIntent state to true (so mouseOut can be called)

				ob.hoverIntent_s = 1;

				return cfg.over.apply(ob,[ev]);

			} else {

				// set previous coordinates for next time

				pX = cX; pY = cY;

				// use self-calling timeout, guarantees intervals are spaced out properly (avoids JavaScript timer bugs)

				ob.hoverIntent_t = setTimeout( function(){compare(ev, ob);} , cfg.interval );

			}

		};



		// A private function for delaying the mouseOut function

		var delay = function(ev,ob) {

			ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);

			ob.hoverIntent_s = 0;

			return cfg.out.apply(ob,[ev]);

		};



		// A private function for handling mouse 'hovering'

		var handleHover = function(e) {

			// next three lines copied from jQuery.hover, ignore children onMouseOver/onMouseOut

			var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;

			while ( p && p != this ) { try { p = p.parentNode; } catch(e) { p = this; } }

			if ( p == this ) { return false; }



			// copy objects to be passed into t (required for event object to be passed in IE)

			var ev = jQuery.extend({},e);

			var ob = this;



			// cancel hoverIntent timer if it exists

			if (ob.hoverIntent_t) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); }



			// else e.type == "onmouseover"

			if (e.type == "mouseover") {

				// set "previous" X and Y position based on initial entry point

				pX = ev.pageX; pY = ev.pageY;

				// update "current" X and Y position based on mousemove

				$(ob).bind("mousemove",track);

				// start polling interval (self-calling timeout) to compare mouse coordinates over time

				if (ob.hoverIntent_s != 1) { ob.hoverIntent_t = setTimeout( function(){compare(ev,ob);} , cfg.interval );}



			// else e.type == "onmouseout"

			} else {

				// unbind expensive mousemove event

				$(ob).unbind("mousemove",track);

				// if hoverIntent state is true, then call the mouseOut function after the specified delay

				if (ob.hoverIntent_s == 1) { ob.hoverIntent_t = setTimeout( function(){delay(ev,ob);} , cfg.timeout );}

			}

		};



		// bind the function to the two event listeners

		return this.mouseover(handleHover).mouseout(handleHover);

	};

	

})(jQuery);