if (navigator.appVersion.indexOf("2.") != -1) {check = false;}
if ((navigator.appVersion.indexOf("3.") != -1) && (navigator.appName.indexOf("Explorer") != -1)) {check = false;  } else {check = true;}

image1= new Image();
image1.src = "images/but_abo.gif";
image1on = new Image();
image1on.src = "images/but_aboA.gif";
image2= new Image();
image2.src = "images/but_auth.gif";
image2on = new Image();
image2on.src = "images/but_authA.gif";
image3= new Image();
image3.src = "images/but_ord.gif";
image3on = new Image();
image3on.src = "images/but_ordA.gif";
image4= new Image();
image4.src = "images/but_con.gif";
image4on = new Image();
image4on.src = "images/but_conA.gif";


function imageon(name)   {document[name].src = eval(name + "on.src"); }
function imageoff(name)  {document[name].src = eval(name + ".src"); }
function on(name)  {if (check == true){imageon(name); } }
function off(name)  {if (check == true){imageoff(name); } }

{
bgText = new Image
item1Text = new Image
item2Text = new Image
item3Text = new Image
item4Text = new Image
 
bgText.src = "images/off_circle.gif"
item1Text.src = "images/about_circle.gif"
item2Text.src = "images/author_circle.gif"
item3Text.src = "images/order_circle.gif"
item4Text.src = "images/contact_circle.gif"
}



function chgImg(imgField,newImg) {
if (document.images) {
document[imgField].src= eval(newImg + ".src")
}
}