$(document).ready(function() {


        function megaHoverOver(){
                $(this).find(".sub").stop().fadeTo('fast', .9).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: 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'});
        $("ul#topnav li").hoverIntent(config);

});