(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);

//added code by Snap
$(document).ready(function() {
	

	function UberHoverOver(){
		$(this).find(".sub").stop().fadeTo('fast', 1).show();
			
		//Calculate width of all ul's
		(function($) { 
			jQuery.fn.calcSubWidth = function() {
				rowWidth = 0;
				//Calculate row
				$(this).find("ul").each(function() {					
					rowWidth += $(this).width(); 
				});	
			};
		})(jQuery); 
		
		if ( $(this).find(".row").length > 0 ) { //If row exists...
			var biggestRow = 0;	
			//Calculate each row
			$(this).find(".row").each(function() {							   
				$(this).calcSubWidth();
				//Find biggest row
				if(rowWidth > biggestRow) {
					biggestRow = rowWidth;
				}
			});
			//Set width
			//$(this).find(".sub").css({'width' :biggestRow});
			$(this).find(".row:last").css({'margin':'0'});
			
		} else { //If row does not exist...
			
			$(this).calcSubWidth();
			//Set Width
			//$(this).find(".sub").css({'width' : rowWidth});
			
		}
	}
	
	function UberHoverOut(){ 
	  $(this).find(".sub").stop().fadeTo('fast', 0, function() {
		  $(this).hide(); 
	  });
	}


	var config = {    
		 sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)    
		 interval: 100, // number = milliseconds for onMouseOver polling interval    
		 over: UberHoverOver, // function = onMouseOver callback (REQUIRED)    
		 timeout: 500, // number = milliseconds delay before onMouseOut    
		 out: UberHoverOut // function = onMouseOut callback (REQUIRED)    
	};

	$("ul#topnav li .sub").css({'opacity':'0'});
	$("ul#topnav li").hoverIntent(config);



});