(function( $ ) {
/**
* hoverIntent is similar to jQuery's built-in "hover" function except that
* instead of firing the onMouseOver event immediately, hoverIntent checks
* to see if the user's mouse has slowed down (beneath the sensitivity
* threshold) before firing the onMouseOver event.
*
* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
*
* hoverIntent is currently available for use in all personal or commercial
* projects under both MIT and GPL licenses. This means that you can choose
* the license that best suits your project, and use it accordingly.
*
* // basic usage (just like .hover) receives onMouseOver and onMouseOut functions
* $("ul li").hoverIntent( showNav , hideNav );
*
* // advanced usage receives configuration object only
* $("ul li").hoverIntent({
*	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>
*/
	$.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);
	};

  Menu = function( args ) {
    var opts = $.extend({
    }, args);

   	function find_menu( menu_item ) {
  		var menu = menu_item.find( '.nav-submenu' );

    	if ( menu.length == 0 ) {
    		menu = $( '#' + $( menu_item ).find( 'a' ).attr( 'id' ) + '-submenu' );

    		$( menu_item ).append( menu.remove() );
  			menu = menu_item.find( '.nav-submenu' );
    	}

    	return menu;
    }

   	function dropdown( selector, pointer ) {
   		$( pointer ).hide();

      $( selector ).hoverIntent( function() {


      	var menu_item = $( this );
      	if(menu_item.hasClass('no-hover') == false){

	      	var menu = find_menu( menu_item );

	      	$( '.selected-nav' ).removeClass( 'selected-nav' );
	      	menu_item.addClass( 'selected-nav' );

	    		var xpos = ( $( '.selected-nav' ).position().left + $( '.selected-nav').width() / 2 ) - ( $( pointer ).width() / 2 ) + 1;

					// Pointer must be a child of menu_item otherwise hoverIntent thinks it's outside of our intent
					menu_item.append( $( pointer ).remove() );

					$( pointer ).css( 'left', xpos ).show();

	      	// Reposition the menu
	      	menu.css( {
	      		left: menu_item.position().left + 'px',
	      		top: menu_item.position().top + menu_item.height() - 1 + 'px'
	      	} ).slideUp( 0 );

	      	// Show it
					menu.slideDown( 50 );
      	}

      },
      function() {
	    	$( '.selected-nav' ).removeClass( 'selected-nav' );
				find_menu( $( this ) ).slideUp( 50 );
      } );
  	};

  	function popover( selector ) {

      $( selector ).hoverIntent( function() {
      	var menu_item = $( this );
      	var menu = find_menu( menu_item );

				$( this ).find( 'a:first' ).addClass( 'hover' );
				$( '#user-head-name' ).addClass( 'active' );
      	// Reposition the menu
      	menu.css( {
      		left: (( menu_item.position().left + ( menu_item.outerWidth() / 2 ) ) - ( menu.outerWidth() / 2 ) + 3 + 'px'),
      		top: ( menu_item.position().top + menu_item.height() - 2 + 'px')
      	} ).fadeIn( 100 );
     	},
     	function() {
     		hide();
				$( this ).find( 'a:first' ).removeClass( 'hover' );
 				$( '#user-head-name' ).removeClass( 'active' );
    	} );
  	}

  	function hide() {
			$( '.nav-popover' ).fadeOut( 100 );
  	}

    var api = {
    	dropdown: dropdown,
    	popover: popover,
    	hide: hide
  	};

  	return api;
  }

	function restore_arrow() {
		// Highlight currently selected item
		if ( $( '.header-bar-section .active' ).length > 0 )
	 		$( '#nav-arrow' ).css( 'left', ( $( '.header-bar-section .active' ).position().left + ( $( '.header-bar-section .active' ).width() / 2 ) + parseInt( $( '.header-bar-section .active' ).css( 'padding-left' ) ) ) - ( $( '#nav-arrow' ).width() / 2 ) + 1 ).show();
	}

	$( document ).ready( function(){
		//main_menu.dropdown( '.main-nav > li', '#nav-arrow' );
		main_menu.popover( '.section-secondary li.has-submenu' );

		$( '.main-nav' ).hoverIntent( function() {}, function() {
			restore_arrow();
		} );

		restore_arrow();
		
		// Quick hack to insert the user survey once the image has loaded
		function reposition_survey() {
			var pos = $( '#stage-inner' ).offset().left + $( '#stage-inner' ).width() - $( '#user-survey' ).width();

			$( '#user-survey' ).css( 'left', pos );
		}
		
		$( '#user-survey img' ).load( function() {
			reposition_survey();
			
			$( '#user-survey a' ).click( function() {
				$( '#user-survey' ).fadeOut();
			} );
			
			$( '#user-survey' ).animate( {
				top: $( '#header' ).height()
			}, 1000, 'easeOutQuart' );
			
			$( window ).resize( function() {
				reposition_survey();
			} );
		} );
	});
})( jQuery );

var main_menu = new Menu();