(function($){$.fn.menuAim=function(opts){this.each(function(){init.call(this,opts);});return this;};function init(opts){var $menu=$(this),activeRow=null,mouseLocs=[],lastDelayLoc=null,timeoutId=null,options=$.extend({rowSelector:"> li",submenuSelector:"*",submenuDirection:"right",tolerance:75,enter:$.noop,exit:$.noop,activate:$.noop,deactivate:$.noop,exitMenu:$.noop},opts);var MOUSE_LOCS_TRACKED=3,DELAY=300;var mousemoveDocument=function(e){mouseLocs.push({x:e.pageX,y:e.pageY});if(mouseLocs.length>MOUSE_LOCS_TRACKED){mouseLocs.shift();}};var mouseleaveMenu=function(){if(timeoutId){clearTimeout(timeoutId);}
if(options.exitMenu(this)){if(activeRow){options.deactivate(activeRow);}
activeRow=null;}};var mouseenterRow=function(){if(timeoutId){clearTimeout(timeoutId);}
options.enter(this);possiblyActivate(this);},mouseleaveRow=function(){options.exit(this);};var clickRow=function(){activate(this);};var activate=function(row){if(row==activeRow){return;}
if(activeRow){options.deactivate(activeRow);}
options.activate(row);activeRow=row;};var possiblyActivate=function(row){var delay=activationDelay();if(delay){timeoutId=setTimeout(function(){possiblyActivate(row);},delay);}else{activate(row);}};var activationDelay=function(){if(!activeRow||!$(activeRow).is(options.submenuSelector)){return 0;}
var offset=$menu.offset(),upperLeft={x:offset.left,y:offset.top-options.tolerance},upperRight={x:offset.left+$menu.outerWidth(),y:upperLeft.y},lowerLeft={x:offset.left,y:offset.top+$menu.outerHeight()+options.tolerance},lowerRight={x:offset.left+$menu.outerWidth(),y:lowerLeft.y},loc=mouseLocs[mouseLocs.length-1],prevLoc=mouseLocs[0];if(!loc){return 0;}
if(!prevLoc){prevLoc=loc;}
if(prevLoc.x<offset.left||prevLoc.x>lowerRight.x||prevLoc.y<offset.top||prevLoc.y>lowerRight.y){return 0;}
if(lastDelayLoc&&loc.x==lastDelayLoc.x&&loc.y==lastDelayLoc.y){return 0;}
function slope(a,b){return(b.y-a.y)/(b.x-a.x);};var decreasingCorner=upperRight,increasingCorner=lowerRight;if(options.submenuDirection=="left"){decreasingCorner=lowerLeft;increasingCorner=upperLeft;}else if(options.submenuDirection=="below"){decreasingCorner=lowerRight;increasingCorner=lowerLeft;}else if(options.submenuDirection=="above"){decreasingCorner=upperLeft;increasingCorner=upperRight;}
var decreasingSlope=slope(loc,decreasingCorner),increasingSlope=slope(loc,increasingCorner),prevDecreasingSlope=slope(prevLoc,decreasingCorner),prevIncreasingSlope=slope(prevLoc,increasingCorner);if(decreasingSlope<prevDecreasingSlope&&increasingSlope>prevIncreasingSlope){lastDelayLoc=loc;return DELAY;}
lastDelayLoc=null;return 0;};$menu.mouseleave(mouseleaveMenu).find(options.rowSelector).mouseenter(mouseenterRow).mouseleave(mouseleaveRow).click(clickRow);$(document).mousemove(mousemoveDocument);};})(jQuery);