$(document).ready(function() {
	//Set custom configurations
	var config = {
		 sensitivity: 1, // number = sensitivity threshold (must be 1 or higher)
		 interval: 0, // number = milliseconds for onMouseOver polling interval
		 over: megaHoverOver, // function = onMouseOver callback (REQUIRED)
		 timeout: 0, // number = milliseconds delay before onMouseOut
		 out: megaHoverOut // function = onMouseOut callback (REQUIRED)
	};
	
	$("ul#topnav li .sub").css({'opacity':'0'}); //Fade sub nav to 0 opacity on default
	$("ul#topnav li").hoverIntent(config); //Trigger Hover intent with custom configurations
});

//On Hover Over
function megaHoverOver(){
	$(this).find(".sub").stop().fadeTo('fast', 1).show(); //Find sub and fade it in
	(function($) {
		//Function to calculate total width of all ul's
		jQuery.fn.calcSubWidth = function() {
			rowWidth = 0;
			//Calculate row
			$(this).find("ul").each(function() { //for each ul...
				rowWidth += $(this).width(); //Add each ul's width together
			});

			rowWidth=(rowWidth > 620)? 620: rowWidth;

		};
	})(jQuery); 

	if ( $(this).find(".row").length > 0 ) { //If row exists...

		var biggestRow = 0;	

		$(this).find(".row").each(function() {	//for each row...
			$(this).calcSubWidth(); //Call function to calculate width of all ul's
			//Find biggest row
			if(rowWidth > biggestRow) {
				biggestRow = rowWidth;
			}
		});

		$(this).find(".sub").css({'width' :biggestRow}); //Set width
		$(this).find(".row:last").css({'margin':'0'});  //Kill last row's margin

	} else { //If row does not exist...

		$(this).calcSubWidth();  //Call function to calculate width of all ul's
		$(this).find(".sub").css({'width' : rowWidth}); //Set Width

	}
}
//On Hover Out
function megaHoverOut(){
  $(this).find(".sub").stop().fadeTo('fast', 0, function() { //Fade to 0 opactiy
	  $(this).hide();  //after fading, hide it
  });
}