var ImgNum=0;var ImgLength=NewImg.length-1;var delay=5000;var lock=false;var run;function chgImg(direction){if(document.images){ImgNum=ImgNum+direction;if(ImgNum>ImgLength){ImgNum=0;}
if(ImgNum<0){ImgNum=ImgLength;}
document.slideshow.src=NewImg[ImgNum];}}
if(lock==true){lock=false;window.clearInterval(run);}
else if(lock==false){lock=true;run=setInterval("chgImg(1)",delay);}