<!--
if (document.images) {
    homebuttonup       = new Image();
    homebuttonup.src   = "http://www.allanevansdraughting.co.uk/images/home1.png" ;
    homebuttondown     = new Image() ;
    homebuttondown.src = "http://www.allanevansdraughting.co.uk/images/home.png" ;
	
	servicesbuttonup       = new Image();
    servicesbuttonup.src   = "http://www.allanevansdraughting.co.uk/images/services1.png" ;
    servicesbuttondown     = new Image() ;
    servicesbuttondown.src = "http://www.allanevansdraughting.co.uk/images/services.png" ;

    contactbuttonup       = new Image();
    contactbuttonup.src   = "http://www.allanevansdraughting.co.uk/images/contact1.png" ;
    contactbuttondown     = new Image() ;
    contactbuttondown.src = "http://www.allanevansdraughting.co.uk/images/contact.png" ;
	
	portbuttonup       = new Image();
    portbuttonup.src   = "http://www.allanevansdraughting.co.uk/images/port1.png" ;
    portbuttondown     = new Image() ;
    portbuttondown.src = "http://www.allanevansdraughting.co.uk/images/port.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" );
    }
}
// -->