<!--
if (document.images) {
    homebuttonup       = new Image();
    homebuttonup.src   = "images/home-2.jpg" ;
    homebuttondown     = new Image() ;
    homebuttondown.src = "images/home-1.jpg" ;

    solutionsbuttonup       = new Image();
    solutionsbuttonup.src   = "images/solutions-1.jpg" ;
    solutionsbuttondown     = new Image() ;
    solutionsbuttondown.src = "images/solutions-2.jpg" ;

    portfoliobuttonup       = new Image();
    portfoliobuttonup.src   = "images/portfolio-1.jpg" ;
    portfoliobuttondown     = new Image() ;
    portfoliobuttondown.src = "images/portfolio-2.jpg" ;

    contactsbuttonup       = new Image();
    contactsbuttonup.src   = "images/contacts-1.jpg" ;
    contactsbuttondown     = new Image() ;
    contactsbuttondown.src = "images/contacts-2.jpg" ;
}
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" );
    }
}
// -->