// jQuery Top Navigation Functions to fade in/out menus.

$(document).ready(function() {
	
	//On Hover Over
	function megaHoverOver(){
		$(this).find(".sub").stop().fadeTo('medium', 1).show(); //Find sub and fade it in
		(function($) {
			//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
				});
			};
		})(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
	  });
	}
	
	
	//Set custom configurations
	var config = {
		 sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)
		 interval: 100, // number = milliseconds for onMouseOver polling interval
		 over: megaHoverOver, // function = onMouseOver callback (REQUIRED)
		 timeout: 500, // 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
	
});