if (document.images) {
	
		homeon=new Image(29,150); homeon.src="/img/nav_walshhome_on.gif";
		homeoff=new Image(20,150); homeoff.src="/img/nav_walshhome_off.gif";
		newson=new Image(29,150); newson.src="/img/nav_news_on.gif";
		newsoff=new Image(20,150); newsoff.src="/img/nav_news_off.gif";
		demoon=new Image(29,150); demoon.src="/img/nav_demo_on.gif";
		demooff=new Image(20,150); demooff.src="/img/nav_demo_off.gif";
		orienton=new Image(29,150); orienton.src="/img/nav_orient_on.gif";
		orientoff=new Image(20,150); orientoff.src="/img/nav_orient_off.gif";
		staffon=new Image(29,150); staffon.src="/img/nav_staff_on.gif";
		staffoff=new Image(20,150); staffoff.src="/img/nav_staff_off.gif";
		faqon=new Image(29,150); faqon.src="/img/nav_faq_on.gif";
		faqoff=new Image(20,150); faqoff.src="/img/nav_faq_off.gif";
		bookon=new Image(29,150); bookon.src="/img/nav_book_on.gif";
		bookoff=new Image(20,150); bookoff.src="/img/nav_book_off.gif";
		}

function point(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "on.src");
  }
}

function nopoint(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}

function loginform_onsubmit() {
	var returnValue = false;

	if (document.loginform.username.value == "")
		{
		alert("Please enter your username");
		document.loginform.username.focus();
		}	

	else if (document.loginform.password.value == "")
		{
		document.loginform.password.value="nopass";
		returnValue = true;
		}	

	else
		{
		returnValue = true;
		}
	
	return returnValue;
}//end function