if(document.images) {
//Define new images

  //Initializations
  text = ""; //Global variable
}

//Generate our random number
function randomNum(){
	ran = 100 * Math.random();
	ran = Math.round(ran);
	return ran;
}

//Image swapping function
function swapImg(imgLocation,imgName){
  if(navigator.appName.indexOf("Netscape") != -1){
    tmpImg = FindImage(imgLocation,document);
  } else {
    tmpImg = document.images[imgLocation];
  }
  if(tmpImg != "" && tmpImg != null){
    tmpImg.src = eval(imgName + ".src");
  }
}

//Find the image if layers are present
function FindImage(name, doc){
  var i, img;
  for (i = 0; i < doc.images.length; i++){
    if (doc.images[i].name == name){ return doc.images[i]; }
  }
  for (i = 0; i < doc.layers.length; i++){
    if ((img = FindImage(name, doc.layers[i].document)) != null) {
      img.container = doc.layers[i];
      return img;
    }
  }
  return null;
}

//Change the image from what the default is to what we want
//  depending on the random number generated.
//  Modify these number ranges if you want to.
function changeImage(imgLocation){
	number = randomNum();
	if (number > 1 && number < 7){
	  alps1 = new Image;
	  var alps1text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps1.src = "images/title_images/matterhorn1.jpg";
		text = alps1text;
		imgSrc = "alps1";
	}
	else if (number > 8 && number < 14){
	  alps2 = new Image;
	  var alps2text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps2.src = "images/title_images/matterhorn1.jpg";
		text = alps2text;
		imgSrc = "alps2";
	}
		else if (number > 15 && number < 21){
	  alps3 = new Image;
	  var alps3text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps3.src = "images/title_images/matterhorn1.jpg";
		text = alps3text;
		imgSrc = "alps3";
	}
		else if (number > 22 && number < 28){
	  alps4 = new Image;
	  var alps4text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps4.src = "images/title_images/matterhorn1.jpg";
		text = alps4text;
		imgSrc = "alps4";
	}
		else if (number > 29 && number < 35){
	  alps4 = new Image;
	  var alps4text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps4.src = "images/title_images/matterhorn2.jpg";
		text = alps4text;
		imgSrc = "alps4";
	}
		else if (number > 36 && number < 42){
	  alps5 = new Image;
	  var alps5text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps5.src = "images/title_images/matterhorn2.jpg";
		text = alps5text;
		imgSrc = "alps5";
	}
		else if (number > 43 && number < 49){
	  alps6 = new Image;
	  var alps6text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps6.src = "images/title_images/matterhorn3.jpg";
		text = alps6text;
		imgSrc = "alps6";
	}
		else if (number > 50 && number < 56){
	  alps7 = new Image;
	  var alps7text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps7.src = "images/title_images/matterhorn3.jpg";
		text = alps7text;
		imgSrc = "alps7";
	}
		else if (number > 57 && number < 63){
	  alps8 = new Image;
	  var alps8text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps8.src = "images/title_images/matterhorn4.jpg";
		text = alps8text;
		imgSrc = "alps8";
	}
			else if (number > 64 && number < 70){
	  alps8 = new Image;
	  var alps8text = "Mount Blanc, France&nbsp;&nbsp;&nbsp;";
	  alps8.src = "images/title_images/mt_blanc1.jpg";
		text = alps8text;
		imgSrc = "alps8";
	}
			else if (number > 71 && number < 77){
	  alps8 = new Image;
	  var alps8text = "Mount Blanc, France&nbsp;&nbsp;&nbsp;";
	  alps8.src = "images/title_images/mt_blanc2.jpg";
		text = alps8text;
		imgSrc = "alps8";
	}
			else if (number > 78 && number < 84){
	  alps8 = new Image;
	  var alps8text = "Mount Blanc, France&nbsp;&nbsp;&nbsp;";
	  alps8.src = "images/title_images/mt_blanc3.jpg";
		text = alps8text;
		imgSrc = "alps8";
	}
			else if (number > 85 && number < 91){
	  alps8 = new Image;
	  var alps8text = "Mount Blanc, France&nbsp;&nbsp;&nbsp;";
	  alps8.src = "images/title_images/mt_blanc4.jpg";
		text = alps8text;
		imgSrc = "alps8";
	}
	else{
	  alps9 = new Image;
	  var alps9text = "The Matterhorn, Switzerland&nbsp;&nbsp;&nbsp;";
	  alps9.src = "images/title_images/matterhorn4.jpg";
		text = alps9text;
		imgSrc = "alps9";
	}
	swapImg(imgLocation,imgSrc);
}