isIE = document.all;
isNN = document.layers;


var what_off = new Image();
what_off.src = 'images/.gif';
var what_on = new Image();
what_on.src = 'images/.gif';

var about_off = new Image();
about_off.src = 'images/nav_about_off.gif';
var about_on = new Image();
about_on.src = 'images/nav_about_on.gif';

var music_off = new Image();
music_off.src = 'images/nav_music_off.gif';
var music_on = new Image();
music_on.src = 'images/nav_music_on.gif';

var writing_off = new Image();
writing_off.src = 'images/nav_writing_off.gif';
var writing_on = new Image();
writing_on.src = 'images/nav_writing_on.gif';

var news_off = new Image();
news_off.src = 'images/nav_news_off.gif';
var news_on = new Image();
news_on.src = 'images/nav_news_on.gif';

var contact_off = new Image();
contact_off.src = 'images/nav_contact_off.gif';
var contact_on = new Image();
contact_on.src = 'images/nav_contact_on.gif';


function newsletter(){
	window.open(".html","signup","width=610,height=470,status=1,scrollbars=0")
}

function offsite_popup(URL){
	window.open(URL,"","height=470,width=600,channelmode=0,dependent=0,directories=0,fullscreen=0,location=1,menubar=1,resizable=1,scrollbars=1,status=1,toolbar=1");
}
  
function rollOn(imgname) {
	if (imgname == "") {
		return;	
	}
	if (isNN) {
  	document.main.document.images[imgname].src = eval(imgname + '_on.src');
  } else {
		document.images[imgname].src = eval(imgname + '_on.src');
	}
}
    
function rollOff(imgname) {
	if (imgname == "") {
		return;	
	}
	if (isNN) {
  	document.main.document.images[imgname].src = eval(imgname + '_off.src');
  } else {
		document.images[imgname].src = eval(imgname + '_off.src');
	}
}


function validateForm(form) {
	var email = form.Email;
	var subj = form.Subject;
	var msg = form.Message;
	if (!email.value) {
		alert("Please enter your email address.");
		email.focus();
		return false;	
	}
	if (!isEmail(email.value)){
		alert("You must supply a valid email address.");
		email.focus();
		return false;	
	}	
	if (!subj.value){
		alert("Please enter a subject for your message.");
		subj.focus();
		return false;	
	}	
	if (!msg.value){
		alert("Please enter your message.");
		msg.focus();
		return false;	
	}	
	return true;
}