/**
* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
*
* sensitivity: 7, // number = sensitivity threshold (must be 1 or higher)
* interval: 100, // number = milliseconds of polling interval
* over: showNav, // function = onMouseOver callback (required)
* timeout: 0, // number = milliseconds delay before onMouseOut function call
* out: hideNav // function = onMouseOut callback (required)
*
* @param f onMouseOver function || An object with configuration options
* @param g onMouseOut function || Nothing (use configuration options object)
* @author Brian Cherne <brian@cherne.net>
*/
(function($) { $.fn.hoverIntent = function(f,g) { var cfg = { sensitivity: 7, interval: 100, timeout: 200 }; cfg = $.extend(cfg, g ? { over: f, out: g } : f ); var cX, cY, pX, pY; var track = function(ev) { cX = ev.pageX; cY = ev.pageY; }; var compare = function(ev,ob) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); if ( ( Math.abs(pX-cX) + Math.abs(pY-cY) ) < cfg.sensitivity ) { $(ob).unbind("mousemove",track); ob.hoverIntent_s = 1; return cfg.over.apply(ob,[ev]);
} else { pX = cX; pY = cY; ob.hoverIntent_t = setTimeout( function(){compare(ev, ob);} , cfg.interval ); } }; var delay = function(ev,ob) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); ob.hoverIntent_s = 0; return cfg.out.apply(ob,[ev]); }; var handleHover = function(e) { 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; } var ev = jQuery.extend({},e); var ob = this;
if (ob.hoverIntent_t) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); } if (e.type == "mouseover") { pX = ev.pageX; pY = ev.pageY; $(ob).bind("mousemove",track); if (ob.hoverIntent_s != 1) { ob.hoverIntent_t = setTimeout( function(){compare(ev,ob);} , cfg.interval );} } else { $(ob).unbind("mousemove",track); if (ob.hoverIntent_s == 1) { ob.hoverIntent_t = setTimeout( function(){delay(ev,ob);} , cfg.timeout );} } }; return this.mouseover(handleHover).mouseout(handleHover); };})(jQuery);