var curimg=0;
var slideshowImages = new Array();

function set_ImagesArray(parmArray){
  slideshowImages = parmArray;
}

function rotateimages(){
  document.getElementById("slideImg").setAttribute("src", "images/"+ slideshowImages[curimg]);
  curimg = (curimg < slideshowImages.length-1) ? curimg+1 : 0;
}