<!--
function open_window(url){
stwin = window.open(url,"win",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=853,height=116');
}
//-->

<!--
function open_window1(url){
stwin = window.open(url,"win",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=1024,height=202');
}
//-->

  imageArray = new Array();
  current = "";
  function load_img(name_src)
  {
    if(document.images) {
      var temp = imageArray[name_src];
      if(! temp) {
        temp = new Image();
        temp.src = name_src;
        imageArray[name_src] = temp;
      }

      return temp;
    }
  }
  function replace_img(name, name_src)
  {    
    if(document.images) {
      if(name != current) {
        document[name].src = load_img(name_src).src;
      }
    }
  }

load_img("nImages/home_over.gif");
load_img("nImages/portfolio_over.gif");
load_img("nImages/lab_over.gif");
load_img("nImages/contact_over.gif");
load_img("nImages/go_over.gif");
load_img("nImages/close_over.gif");