var img=["upfiles/janp_img6645ji.jpg","upfiles/janp_dscn4099ji.jpg","upfiles/janp_img0306.jpg","upfiles/janp_img0273ji.jpg"];var pcount = 3;
var index = -1;
$(document).ready(function(){
  $('#right').click(function()
  {
    $('#loading').css('display','block');
    $('#pgal').css('width','100%');
        if(index==pcount){
            index=0;
        }else{
            index++;
        }           
    $('#pgal').attr('src',img[index]).load(function() {
         $('#loading').css('display','none');
       });
   });
  $('#left').click(function()
  {
    $('#loading').css('display','block');
    $('#pgal').css('width','100%');
        if(index==-1){ index=pcount; }
        if(index==0){
            index=pcount;
        }else{
            index--;
        }           
    $('#pgal').attr('src',img[index]).load(function() {
         $('#loading').css('display','none');
       });
   });
});