// clear form 
 function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
} 

// email this page (and grab the url)
var fileName = document.URL;
escapedFileName = escape(fileName);
function email()
{
var popurl="/wnet/wideangle/toolbox/email_this.php?"+escapedFileName;
winpops=window.open(popurl,"","width=470,height=360");
}   

// check form (email friend)
function ValidateForm()
{
	if(document.mailer.yname.value=="")
	{
		alert ("Please enter your name.")
		return false
	}
	
	if(document.mailer.yemail.value=="")
	{
		alert ("Please enter your email address.")
		return false
	}
	
	if(document.mailer.fname.value=="")
	{
		alert ("Please enter your friend's name.")
		return false
	}
	
	if(document.mailer.femail.value=="")
	{
		alert ("Please enter your friend's email address.")
		return false
	}
	
}


function homeON() {if (document.images) document.home.src= '/wnet/wideangle/images/nav_on_01.png';}
function homeOFF() {if (document.images) document.home.src= '/wnet/wideangle/images/nav_off_01.png';}

function episodesON() {if (document.images) document.episodes.src= '/wnet/wideangle/images/nav_on_02.png';}
function episodesOFF() {if (document.images) document.episodes.src= '/wnet/wideangle/images/nav_off_02.png';}

function videoON() {if (document.images) document.video.src= '/wnet/wideangle/images/nav_on_03.png';}
function videoOFF() {if (document.images) document.video.src= '/wnet/wideangle/images/nav_off_03.png';}

function eduON() {if (document.images) document.edu.src= '/wnet/wideangle/images/nav_on_04.png';}
function eduOFF() {if (document.images) document.edu.src= '/wnet/wideangle/images/nav_off_04.png';}

function aboutON() {if (document.images) document.about.src= '/wnet/wideangle/images/nav_on_05.png';}
function aboutOFF() {if (document.images) document.about.src= '/wnet/wideangle/images/nav_off_05.png';}

function schedON() {if (document.images) document.sched.src= '/wnet/wideangle/images/nav_on_06.png';}
function schedOFF() {if (document.images) document.sched.src= '/wnet/wideangle/images/nav_off_06.png';}