var img1 = new Image();
img1.src = "images/l-b_02.jpg";
var img2 = new Image();
img2.src = "images/l-b_03.jpg";
var img3 = new Image();
img3.src = "images/l-b_04.jpg";
var img4 = new Image();
img4.src = "images/l-b_05.jpg";
var img5 = new Image();
img5.src = "images/l-b_06.jpg";
var img6 = new Image();
img6.src = "images/l-b_07.jpg";

function imgSwap(img, imgTo) {
	document.images[img].src = 'images/' + imgTo + '.jpg';
}

function popupPic (w, h, p, d) {
	var newWin = window.open('', '', 'width=' + (parseInt(w) + 40) + ',height=' + (parseInt(h) + 80) + ',left=10,top=10,scrollbars');
	newWin.document.write('<link rel="stylesheet" href="style.css" type="text/css">');
	newWin.document.write('<div align="center"><img src="' + d + '/' + p + '"><br><br>');
	newWin.document.write('<a href="javascript:self.close();">Close this window</a><br><br>');
}

function validateForm() {
	var erMess = '';
	
	if (Trim(document.signupForm.contactName.value) == '') { erMess += "Please fill in a name.\n"; }
	if (Trim(document.signupForm.contactEmail.value) == '') { erMess += "Please fill in an email address.\n"; }
	
	if (erMess != '') {
		alert(erMess);
		return false;
	}
}

function Trim(str) {
	while (str.substring(0,1) == ' ') {
		str = str.substring(1, str.length);
	}
	
	while (str.substring(str.length-1, str.length) == ' ') {
		str = str.substring(0, str. length-1);
	}
	
	return str;
}