$(document).ready(function () {
        $(window).scroll(function (event) {
            var y = $(this).scrollTop();
            var top = 50;
            if (y >= top) {
                $('#leftnavi').addClass('fixed');
            } else {
                $('#leftnavi').removeClass('fixed');
            }
        });
    });
    
    function videochange(vid){
        var data = '<iframe width="495" height="312" src="http://www.youtube.com/embed/'+vid+'" frameborder="0" allowfullscreen>';
        $('#video').html(data);
        $('#tv'+startvideo).removeClass('vidsel');
        $('#tv'+vid).addClass('vidsel');
        startvideo = vid;
    }
    
     var old = 1;
     var hslide = 0;
     var delay = 4000;
     var s = 1;
     var dp = 1;
    
     function imgchange(n){
         if(n != old){
           $('#img'+n).fadeIn('slow');
           $('#img'+old).fadeOut('slow');
           $('#gal_'+n).addClass('sele');
           $('#gal_'+old).removeClass('sele');
           old = n;
        }
     }
    
     function imgslide(){
      if(hslide == 0){ 
        hslide = 1;
        $.doTimeout( 'loop', delay, function(){
           if ( hslide == 0 ) {
              
               return false;
            }else{
                imgright(1);
            }
           
           return true;
         });;
        if(s == 1){ s = 0; }else{ imgright(hslide); }
         
      }else{ 
        hslide = 0; 
      }
     }
    
     function timg(t){
       hslide = 0; 
       imgchange(t);
     }
     
      function imgright(t){
       if(t == 0){ hslide = 0; }
       var n = old + 1;
       if(old == imgc){
         imgchange(1);
       }else{
         imgchange(n);
       }
     }