(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);