$(document).ready(function() {

	function megaHoverOver(){
		// Fade out other nav menus
		$(this).parent().find(".sub").stop().fadeTo(200, 0, function() {
			  $(this).hide(); 
		  });
		// Fade in this one
		$(this).find(".sub").stop().fadeTo(200, 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(".sub-row").length > 0 ) { //If row exists...
			var biggestRow = 0;	
			//Calculate each row
			$(this).find(".sub-row").each(function() {							   
				$(this).calcSubWidth();
				//Find biggest row
				if(rowWidth > biggestRow) {
					biggestRow = rowWidth;
				}
			});
			//Set width
			$(this).find(".sub").css({'width' :biggestRow});
			$(this).find(".sub-row:last").css({'margin':'0'});
			
		} else { //If row does not exist...
			$(this).calcSubWidth();
			//Set Width
			//$(this).find(".sub").css({'width' : '462px'});
		}
	}
	
	function megaHoverOut(){ 
	  $(this).find(".sub").stop().fadeTo(200, 0, function() {
		  $(this).hide(); 
	  });
	}

	var config = {    
		 sensitivity:2, // number = sensitivity threshold (must be 1 or higher)    
		 interval:50, // number = milliseconds for onMouseOver polling interval    
		 over:megaHoverOver, // function = onMouseOver callback (REQUIRED)    
		 timeout:300, // number = milliseconds delay before onMouseOut    
		 out:megaHoverOut // function = onMouseOut callback (REQUIRED)    
	};

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

});