$(document).ready(function() {
	        //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
                    });
                };
            })(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: 1, // number = sensitivity threshold (must be 1 or higher)
     interval: 1, // number = milliseconds for onMouseOver polling interval
     over: megaHoverOver, // function = onMouseOver callback (REQUIRED)
     timeout: 1, // 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);

                });