if (document.images) 
{ 
nav1on = new Image();
nav1on.src = "/images/nav_home_on.gif";
nav2on = new Image();
nav2on.src = "/images/nav_about_on.gif";
nav3on = new Image();
nav3on.src = "/images/nav_archives_on.gif";
nav4on = new Image();
nav4on.src = "/images/stations_on.gif";



nav1off = new Image();
nav1off.src = "/images/nav_home_off.gif";
nav2off = new Image();
nav2off.src = "/images/nav_about_off.gif";
nav3off = new Image();
nav3off.src = "/images/nav_archives_off.gif";
nav4off = new Image();
nav4off.src = "/images/stations_off.gif";



} 
function imgOn(imgName) 
{ 
if (document.images) 
{ 
document[imgName].src = eval(imgName + "on.src"); 
} 
} 
function imgOff(imgName) 
{ 
if (document.images)
{ document[imgName].src = eval(imgName + "off.src"); 
} 
}



function popUp(path) {
    features = "width=375,height=251,scrollbars=no,fullscreen=no,toolbar=no,status=no,menubar=no,resizable=no,directories=no,location=no";
	window.open(path, 'popup', features);
}