$(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: 1, // number = sensitivity threshold (must be 1 or higher)    
       interval: 200, // number = milliseconds for onMouseOver polling interval    
       over: megaHoverOver, // function = onMouseOver callback (REQUIRED)    
       timeout: 600, // number = milliseconds delay before onMouseOut    
       out: megaHoverOut // function = onMouseOut callback (REQUIRED)    
    };
  
    $("div#mainnav .sub").css({'display':'none','opacity':'0'});
    $("div#mainnav ul li").hoverIntent(config);
    
        $("div#mainnav li.hassub.not(.sub li.hassub)").hover(function(){
                 $("div#mainnav li.hassub").removeClass('isactive');
                $(this).addClass('isactive');
        }, function() {
                 $("div#mainnav li.hassub").removeClass('isactive');
        });

        $("div#mainnav ul.sub").hover(function(){
                 $("div#mainnav li.hassub").removeClass('isactive');
                $(this).parent().addClass('isactive');
        }, function() {
                 $("div#mainnav li.hassub").removeClass('isactive');
        });
    
    
  });