//  Start externally added code
//  *****************************

//  Start navigation rollover script here
nav1_off = new Image ( );
nav2_off = new Image ( );
nav3_off = new Image ( );
nav4_off = new Image ( );
nav5_off = new Image ( );

nav1_on = new Image ( );
nav2_on = new Image ( );
nav3_on = new Image ( );
nav4_on = new Image ( );
nav5_on = new Image ( );

nav1_off.src = "../images/nav-home-of.gif";
nav2_off.src = "../images/nav-bio-gary-of.gif";
nav3_off.src = "../images/nav-bio-tim-of.gif";
nav4_off.src = "../images/nav-bio-ingrid-of.gif";
nav5_off.src = "../images/nav-contact-us-of.gif";

nav1_on.src = "../images/nav-home-on.gif";
nav2_on.src = "../images/nav-bio-gary-on.gif";
nav3_on.src = "../images/nav-bio-tim-on.gif";
nav4_on.src = "../images/nav-bio-ingrid-on.gif";
nav5_on.src = "../images/nav-contact-us-on.gif";

function button_off ( imgId ) {
	if ( document.images ) {
		butOff = eval ( imgId + "_off.src" );
		document.getElementById(imgId).src = butOff;
	}
}

function button_on ( imgId ) {
	if ( document.images ) {
		butOn = eval ( imgId + "_on.src" );
		document.getElementById(imgId).src = butOn;
	}
}

//  ***************************
//  End externally added code