var slide=0;
var play=true;

function run(){
  if(play){
    if(slide<img.length-1)slide++;
    else slide=0;

    sl=document.getElementById("slideshow");

    if(sl!=undefined)sl.innerHTML=img[slide];
    
    setTimeout("run()",10000);
  }
}

function go(dir){
    if(slide==-1)slide=0;
    if(dir==1){
        if(slide<img.length-1)slide++;
        else slide=0;
    }else if(dir==-1){
        if(slide>0)slide--;
        else slide=img.length-1;
    }

    sl=document.getElementById("slideshow");

    if(sl!=undefined)sl.innerHTML=img[slide];
}

function pause(){
    if(play)play=false;
    else{
      play=true;
      run();
    }
}