// JavaScript Document

if (document.images) {
    button1buttonup       = new Image();
    button1buttonup.src   = "images/graphics/products_btn.gif" ;
    button1buttondown     = new Image() ;
    button1buttondown.src = "images/graphics/products_btndown.gif" ;
}
if (document.images) {
    button2buttonup       = new Image();
    button2buttonup.src   = "images/graphics/contact_btn.gif" ;
    button2buttondown     = new Image() ;
    button2buttondown.src = "images/graphics/contact_btndown.gif" ;
}
if (document.images) {
    button3buttonup       = new Image();
    button3buttonup.src   = "images/graphics/home_btn.gif" ;
    button3buttondown     = new Image() ;
    button3buttondown.src = "images/graphics/home_btndown2.gif" ;
}
if (document.images) {
    button4buttonup       = new Image();
    button4buttonup.src   = "images/graphics/gallery_btn.gif" ;
    button4buttondown     = new Image() ;
    button4buttondown.src = "images/graphics/gallery_btndown.gif" ;
}
function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}