// Swap image function 
//onMouseOver="ChangeImage('n1','n1b')" onMouseOut="ChangeImage('n1','n1a')"
  function ChangeImage (ImageName, FileName) {
    if (document.images) {
      document[ImageName].src = eval(FileName + ".src");
    }
  }


/// NAV Image preloader
if (document.images) {
  hm_enter_a = new Image(1,1);
  hm_enter_a.src = "images/hm_enter_a.gif";
  hm_enter_b = new Image(1,2);
  hm_enter_b.src = "images/hm_enter_b.gif";
  
  
  n1a = new Image(2,1);
  n1a.src = "images/n1a.gif";
  n1b = new Image(2,2);
  n1b.src = "images/n1b.gif";
  
  n2a = new Image(2,3);
  n2a.src = "images/n2a.gif";
  n2b = new Image(2,4);
  n2b.src = "images/n2b.gif";
  
  n3a = new Image(2,5);
  n3a.src = "images/n3a.gif";
  n3b = new Image(2,6);
  n3b.src = "images/n3b.gif";
  
  n4a = new Image(2,7);
  n4a.src = "images/n4a.gif";
  n4b = new Image(2,8);
  n4b.src = "images/n4b.gif";
  
  n5a = new Image(2,9);
  n5a.src = "images/n5a.gif";
  n5b = new Image(2,10);
  n5b.src = "images/n5b.gif";
  
  n6a = new Image(2,11);
  n6a.src = "images/n6a.gif";
  n6b = new Image(2,12);
  n6b.src = "images/n6b.gif";
  
  n7a = new Image(2,13);
  n7a.src = "images/n7a.gif";
  n7b = new Image(2,14);
  n7b.src = "images/n7b.gif";

}


// OPEN WINDOW SCRIPT - CENTERED
var win = null;
function openWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable=no'
win = window.open(mypage,myname,settings)
}