<!--
	// buttons.js
	// roll over navbar script

	// preload button images
	if (document.images)
	 {
	homebuttonup       = new Image();
	homebuttonup.src   = "home.gif" ;
	homebuttondown     = new Image() ;
	homebuttondown.src = "home2.gif" ;

	aboutbuttonup       = new Image();
	aboutbuttonup.src   = "about.gif" ;
	aboutbuttondown     = new Image() ;
	aboutbuttondown.src = "about2.gif" ;

	softwarebuttonup       = new Image();
	softwarebuttonup.src   = "software.gif" ;
	softwarebuttondown     = new Image() ;
	softwarebuttondown.src = "software2.gif" ;

	photosbuttonup       = new Image();
	photosbuttonup.src   = "photos.gif" ;
	photosbuttondown     = new Image() ;
	photosbuttondown.src = "photos2.gif" ;

	astrobuttonup       = new Image();
	astrobuttonup.src   = "astro.gif" ;
	astrobuttondown     = new Image() ;
	astrobuttondown.src = "astro2.gif" ;

	musicbuttonup       = new Image();
	musicbuttonup.src   = "music.gif" ;
	musicbuttondown     = new Image() ;
	musicbuttondown.src = "music2.gif" ;

	emailbuttonup       = new Image();
	emailbuttonup.src   = "email.gif" ;
	emailbuttondown     = new Image() ;
	emailbuttondown.src = "email2.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" );
	}
}

//-->