// JavaScript Document

function rollOver(whatImg) {
  if (document.images) {
	image=whatImg.getAttribute("src");
	imageArray = image.split(".");
	//alert(imageArray.length);
	newImg = imageArray[imageArray.length-2];
  	//alert(imageArray[imageArray.length-2]);
	newImgArray = newImg.split("/");
	//alert(newImgArray[newImgArray.length-1]);
	imgName=newImgArray[newImgArray.length-1];
	whatImg.setAttribute("src", "images/"+imgName+"_over.gif")
  }
}

function rollOff(whatImg) {
  if (document.images) {
	image=whatImg.getAttribute("src");
	imageArray = image.split("_over");
	newImg = imageArray[imageArray.length-2];
  	//alert(imageArray[0]);
	whatImg.setAttribute("src", newImg+".gif")
  	//alert(image);
  }
}