if (document.images) { 
 
  var fwdarrow_up = new Image();
  fwdarrow_up.src = "Photos/next.gif";  
  
  var fwdarrow_over = new Image();
  fwdarrow_over.src = "Photos/next_over.gif";
  
  var lastarrow_up = new Image();
  lastarrow_up.src = "Photos/last.gif";  
  
  var lastarrow_over = new Image();
  lastarrow_over.src = "Photos/last_over.gif";
  
  var prevarrow_up = new Image();
  prevarrow_up.src = "Photos/prev.gif";  
  
  var prevarrow_over = new Image();
  prevarrow_over.src = "Photos/prev_over.gif";
  
  var firstarrow_up = new Image();
  firstarrow_up.src = "Photos/first.gif";  
  
  var firstarrow_over = new Image();
  firstarrow_over.src = "Photos/first_over.gif";
} 

function over_fwdarrow() {
  if (document.images) {
    document["fwdarrow"].src = fwdarrow_over.src
  }
} 
 
function up_fwdarrow() {
  if (document.images) {
    document["fwdarrow"].src = fwdarrow_up.src
  }
} 

function over_lastarrow() {
  if (document.images) {
    document["lastarrow"].src = lastarrow_over.src
  }
}

function up_lastarrow() {
  if (document.images) {
    document["lastarrow"].src = lastarrow_up.src
  }
}  

function over_prevarrow() {
  if (document.images) {
    document["prevarrow"].src = prevarrow_over.src
  }
} 
 
function up_prevarrow() {
  if (document.images) {
    document["prevarrow"].src = prevarrow_up.src
  }
} 

function over_firstarrow() {
  if (document.images) {
    document["firstarrow"].src = firstarrow_over.src
  }
}

function up_firstarrow() {
  if (document.images) {
    document["firstarrow"].src = firstarrow_up.src
  }
}  
//-->