$(document).ready(function() {

    function megaHoverOver(){
        $(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 megaHoverOut(){ 
      $(this).find(".sub").stop().fadeTo('fast', 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: 400, // number = milliseconds delay before onMouseOut    
         out: megaHoverOut // function = onMouseOut callback (REQUIRED)    
    };

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