pic1= new Image(39,20);
pic1.src="images/about_over.gif";
pic2= new Image(36,20);
pic2.src="images/news_over.gif";
pic3= new Image(39,20);
pic3.src="images/faq_over.gif";
pic4= new Image(46,20);
pic4.src="images/discuss_over.gif";
pic5= new Image(47,20);
pic5.src="images/contact_over.gif";
pic6= new Image(54,20);
pic6.src="images/purchase_over.gif";
pic7= new Image(47,20);
pic7.src="images/tutorial_over.gif";

function flipImage(imageToFlip, imageName) {
	imageToFlip.src = imageName;
	return true;
}

function ValidateForm() {

  errmsg= '';
  var thisErrmsg= '';

  eMailValue = document.contactForm.email.value;
  if (eMailValue=='') {
     errmsg= 'Please enter your email address';
     document.contactForm.email.focus();
  }

  if ((errmsg!='')) alert(errmsg);
  return (errmsg=='');
}