var ImgNum = 0;
var ImgLength = NewImg.length - 1;

//Time delay between Slides in milliseconds
var delay = 4000;

var lock = false;
var run;
function preload()
{
for(i in NewImg)
	{
	tmp = new Image();
	tmp.src = NewImg[i];
	}
}
function chgImg(direction) {
   if (document.images) {
      ImgNum = ImgNum + direction;
      if (ImgNum > ImgLength) {
         ImgNum = 0;
      }
      if (ImgNum < 0) {
         ImgNum = ImgLength;
      }
      document.slideshow.src = NewImg[ImgNum];
      
      document.getElementById('photo_caption').innerHTML = NewCapt[ImgNum];
      
      var CurrentImgNum = (((ImgNum) * 1) + 1);
      
      document.getElementById('current_img_num').innerHTML = CurrentImgNum;
   }
}

function auto() {
   if (lock == true) {
      lock = false;
      window.clearInterval(run);
   }
   else if (lock == false) {
      lock = true;
      run = setInterval("chgImg(1)", delay);
   }
}



document.getElementById('total_num_img').innerHTML = ((ImgLength * 1) + 1);
preload();
chgImg(0);