<!--
if (document.images) {
    homebuttonup       		= new Image();
    homebuttonup.src   		= "images/menu/home.png" ;
    homebuttondown     		= new Image() ;
    homebuttondown.src 		= "images/menu/home_over.png" ;
	
	wiewijbuttonup			= new Image();
	wiewijbuttonup.src		= "images/menu/wiewij.png" ;
	wiewijbuttondown		= new Image() ;
	wiewijbuttondown.src	= "images/menu/wiewij_over.png" ;
	
	watwijbuttonup			= new Image();
	watwijbuttonup.src		= "images/menu/watdoen.png" ;
	watwijbuttondown		= new Image() ;
	watwijbuttondown.src	= "images/menu/watdoen_over.png" ;
	
	prodbuttonup			= new Image();
	prodbuttonup.src		= "images/menu/product.png" ;
	prodbuttondown			= new Image() ;
	prodbuttondown.src		= "images/menu/product_over.png" ;
	
	leverbuttonup			= new Image();
	leverbuttonup.src		= "images/menu/lever.png" ;
	leverbuttondown			= new Image() ;
	leverbuttondown.src		= "images/menu/lever_over.png" ;
	
	kalenbuttonup			= new Image();
	kalenbuttonup.src		= "images/menu/kalen.png" ;
	kalenbuttondown			= new Image() ;
	kalenbuttondown.src		= "images/menu/kalen_over.png" ;
	
	fotosbuttonup			= new Image();
	fotosbuttonup.src		= "images/menu/foto.png" ;
	fotosbuttondown			= new Image() ;
	fotosbuttondown.src		= "images/menu/foto_over.png" ;
	
	gastbuttonup			= new Image();
	gastbuttonup.src		= "images/menu/gast.png" ;
	gastbuttondown			= new Image() ;
	gastbuttondown.src		= "images/menu/gast_over.png" ;
	
	linkbuttonup			= new Image();
	linkbuttonup.src		= "images/menu/link.png" ;
	linkbuttondown			= new Image() ;
	linkbuttondown.src		= "images/menu/link_over.png" ;
	
	contbuttonup			= new Image();
	contbuttonup.src		= "images/menu/contact.png" ;
	contbuttondown			= new Image();
	contbuttondown.src		= "images/menu/contact_over.png" ;
}
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" );
    }
}
// -->