function show_emailform ( )
{

	var layer = document.getElementById("friend");
	layer.style.visibility="visible";
}
function hide_emailform ( )
{

	var layer = document.getElementById("friend");
	layer.style.visibility="hidden";
}




function emailfriendCheck()
{
	var yname=document.emailfriend.yname.value;
	var yemail=document.emailfriend.yemail.value;
	var email=document.emailfriend.email.value;
	
	document.emailfriend.link.value=document.location;
	
	if ( email =="")
	{
		hide_emailform ( );
		document.emailfriend.yname.value="";
		document.emailfriend.yemail.value="";
		document.emailfriend.comments.value="";
		alert("Please enter your friend email address.");
		
		//document.clear();
		
		return false;
		
	}
	
	else if (yname=="")
	{
		
		hide_emailform ( );
		document.emailfriend.email.value="";
		document.emailfriend.yemail.value="";
		document.emailfriend.comments.value="";
		alert("Please enter your name!");
		return false;
	}
	else if (yemail =="")
	{
		document.emailfriend.yname.value="";
		document.emailfriend.email.value="";
		document.emailfriend.comments.value="";
		hide_emailform ( );
		alert("Please enter your email address.");
		return false;
	}
	else 
	{
		hide_emailform ( );
		return true;
	}
}

var timer;

function showLayer(layerid) {

var layer=document.getElementById(layerid);

layer.style.visibility = "visible";


}

function offsubMenus() {
	
	timer = window.setTimeout ("hideLayer('subSvs')", 1000);
	 
	
}

function hideLayer(layerid) {
var layer = document.getElementById(layerid);
layer.style.visibility="hidden";





}

function changeBG(cell) {

var currentCell = document.getElementById(cell);
currentCell.style.backgroundColor = "#B5EAEA";
}

function restoreBG(cell) {

var currentCell = document.getElementById(cell);
currentCell.style.backgroundColor="#2BD0D5";
}