if (document.images) 
{
  img1on = new Image(); img1on.src = "img/nav_home_1.gif"; 
  img1off = new Image(); img1off.src = "img/nav_home_0.gif";

  img2on = new Image(); img2on.src = "img/nav_profile_1.gif"; 
  img2off = new Image(); img2off.src = "img/nav_profile_0.gif";

  img3on = new Image(); img3on.src = "img/nav_users_1.gif"; 
  img3off = new Image(); img3off.src = "img/nav_users_0.gif";

  img4on = new Image(); img4on.src = "img/nav_domains_1.gif"; 
  img4off = new Image(); img4off.src = "img/nav_domains_0.gif";

  img5on = new Image(); img5on.src = "img/nav_spam_1.gif"; 
  img5off = new Image(); img5off.src = "img/nav_spam_0.gif";

  img6on = new Image(); img6on.src = "img/nav_virus_1.gif"; 
  img6off = new Image(); img6off.src = "img/nav_virus_0.gif";

  img7on = new Image(); img7on.src = "img/nav_inbound_1.gif"; 
  img7off = new Image(); img7off.src = "img/nav_inbound_0.gif";
  
  img8on = new Image(); img8on.src = "img/nav_outbound_1.gif"; 
  img8off = new Image(); img8off.src = "img/nav_outbound_0.gif";
  
  img9on = new Image(); img9on.src = "img/nav_reports_1.gif"; 
  img9off = new Image(); img9off.src = "img/nav_reports_0.gif";
  
  img10on = new Image(); img10on.src = "img/nav_support_1.gif"; 
  img10off = new Image(); img10off.src = "img/nav_support_0.gif";
  
  img11on = new Image(); img11on.src = "img/nav_quarantine_1.gif"; 
  img11off = new Image(); img11off.src = "img/nav_quarantine_0.gif";

  img12on = new Image(); img12on.src = "img/nav_message_1.gif"; 
  img12off = new Image(); img12off.src = "img/nav_message_0.gif";
  
  img13on = new Image(); img13on.src = "img/nav_personal_1.gif"; 
  img13off = new Image(); img13off.src = "img/nav_personal_0.gif";
  
  img14on = new Image(); img14on.src = "img/nav_account_1.gif"; 
  img14off = new Image(); img14off.src = "img/nav_account_0.gif";
  
  img15on = new Image(); img15on.src = "img/nav_list_1.gif"; 
  img15off = new Image(); img15off.src = "img/nav_list_0.gif";
  
  img16on = new Image(); img16on.src = "img/nav_filter_1.gif"; 
  img16off = new Image(); img16off.src = "img/nav_filter_0.gif";
}

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