function changeImage1()
{
document.images["jsbutton"].src= "menu/home1.gif";
return true;
}
function changeImageBack1()
{
 document.images["jsbutton"].src = "menu/home.gif";
 return true;
}


function changeImage2()
{
document.images["jsbutton1"].src= "menu/about1.gif";
return true;
}
function changeImageBack2()
{
 document.images["jsbutton1"].src = "menu/about.gif";
 return true;
}


function changeImage3()
{
document.images["jsbutton2"].src= "menu/archive1.gif";
return true;
}
function changeImageBack3()
{
 document.images["jsbutton2"].src = "menu/archive.gif";
 return true;
}


function changeImage4()
{
document.images["jsbutton3"].src= "images/contact1.png";
return true;
}
function changeImageBack4()
{
 document.images["jsbutton3"].src = "images/contact2.png";
 return true;
}