function MenuItem(name,onimg,offimg,href)
  {
  this.name = name;
  this.onimg = onimg;
  this.offimg = offimg;
  this.href = href;
  }

function SubMenuItem(name,label,href)
  {
  this.name = name;
  this.label = label;
  this.href = href;
  }

function newImage(arg)
  {
  if(document.images)
    {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
    }
  }

function GetItem(item)
  {
  if( window.mmIsOpera ) return(document.getElementById(item));
  if(document[item]) return (document[item]);
  if (document.all) return(document.all[item]);
  if (document.getElementById) return(document.getElementById(item));
  return(false);
  }

function selectMenu(name)
  {
  for(var i=0; i<menus.length; i++)
    {
    var item = menus[i]
    var menuname = (item)? item.name+'menu' : 'xx'
    var submenu = GetItem(menuname)
    if(document.images && preloadFlag)
      {
      if(item.name==name)
        {
        document[item.name].src = item.onimg
        if(submenu && submenu.style) submenu.style.visibility = 'visible'
        }
      else
        {
        document[item.name].src = item.offimg
        if(submenu && submenu.style) submenu.style.visibility = 'hidden'
        }
      }
    }
  }

function selectSubMenu(sel)
  {
  var eSrc = window.event.srcElement

  if(eSrc)
    {
    if(sel && eSrc.style)
      {
      eSrc.style.color = "#000000"
      if(eSrc.children && eSrc.children.length) eSrc.children(0).style.color = "#000000"
      }
    else if(eSrc.style)
      {
      eSrc.style.color = "#FFFFFF"
      if(eSrc.children && eSrc.children.length) eSrc.children(0).style.color = "#FFFFFF"
      }
    }
  }

function changeImages()
  {
  if(document.images && (preloadFlag==true))
    for (var i=0; i<changeImages.arguments.length; i+=2)
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
  }

var menus = new Array();
var preloadFlag = false;
function onLoad()
  {
    if(document.images)
    {
    	home_over = newImage("images/home_over.jpg");
	homeoff_over = newImage("images/home.jpg");
    	company_over = newImage("images/company_over.jpg");
    	companyoff_over = newImage("images/company.jpg");
    	services_over = newImage("images/services_over.jpg");
    	servicesoff_over = newImage("images/services.jpg");
    	industries_over = newImage("images/industries_over.jpg");
    	industriesoff_over = newImage("images/industries.jpg");
    	technology_over = newImage("images/technology_over.jpg");
    	technologyoff_over = newImage("images/technology.jpg");
	careers_over = newImage("images/careers_over.jpg");
    	careersoff_over = newImage("images/careers.jpg");
	clients_over = newImage("images/clients_over.jpg");
    	clientsoff_over = newImage("images/clients.jpg");
	contact_over = newImage("images/contact_over.jpg");
    	contactoff_over = newImage("images/contact.jpg");
    	
	preloadFlag = true;
    }

  menus[menus.length] = new MenuItem("home", "images/home_over.jpg", "images/home.jpg", "index.html")
  menus[menus.length] = new MenuItem("company", "images/company_over.jpg", "images/company.jpg", "company.htm")
  menus[menus.length] = new MenuItem("services", "images/services_over.jpg", "images/services.jpg", "services.htm")
  menus[menus.length] = new MenuItem("industries", "images/industries_over.jpg", "images/industries.jpg", "industries.htm")
  menus[menus.length] = new MenuItem("technology", "images/technology_over.jpg", "images/technology.jpg", "technology.htm")
  menus[menus.length] = new MenuItem("careers", "images/careers_over.jpg", "images/careers.jpg", "careers.htm")
  menus[menus.length] = new MenuItem("clients", "images/clients_over.jpg", "images/clients.jpg", "clients.htm")
  menus[menus.length] = new MenuItem("contact", "images/contact_over.jpg", "images/contact.jpg", "contact.htm")

  }