var st = "nurse";
var et = "uk";

if(document.images)
{
	a_off = new Image;
	b_off = new Image;
	c_off = new Image;
	d_off = new Image;
	e_off = new Image;

	a_on = new Image;
	b_on = new Image;
	c_on = new Image;
	d_on = new Image;
	e_on = new Image;

	a_off.src = "./imgs/a.jpg";
	b_off.src = "./imgs/b.jpg";
	c_off.src = "./imgs/c.jpg";
	d_off.src = "./imgs/d.jpg";
	e_off.src = "./imgs/e.jpg";

	a_on.src = "./imgs/a_over.jpg";
	b_on.src = "./imgs/b_over.jpg";
	c_on.src = "./imgs/c_over.jpg";
	d_on.src = "./imgs/d_over.jpg";
	e_on.src = "./imgs/e_over.jpg";
}

function swapOut(s)
{
	imgname = eval(s + "_off.src");
	document[s].src = imgname;
}

function swapOver(s)
{
	imgname = eval(s + "_on.src");
	document[s].src = imgname;
}

function eal()
{
	var se = "ns" + "contact" + "@" + st + "linktraining";
	document.write("<a href=" + "mail" + "to:" + se + ".co." + et + ">" + se + ".co." + et + "</a>");
}

function checkcontact()
{
	var filled = false;
	var correct = false;

	var email = document.forms.Form.address.value;

	if(document.forms.Form.name.value == "")
	{
		alert("Please enter your name.");
		document.forms.Form.name.focus();
	}
	else if(email == "")
	{
		alert("Please enter your e-mail address.");
		document.forms.Form.address.focus();
	}
	else if(document.forms.Form.enquiry.value == "")
	{
		alert("Please give some details of your enquiry.");
		document.forms.Form.enquiry.focus();
	}
	else
	{
		filled = true;
	}

	if((email != "") && (filled == true))
	{
		if((email.indexOf('@') == 0) || (email.indexOf('@') == -1) || (email.lastIndexOf('.') == -1) || (email.indexOf('@') == email.lastIndexOf('.')-1) || (email.indexOf('@') > email.lastIndexOf('.')) || (email.lastIndexOf('.') == email.length-1))
		{
			alert("Please enter a vaild e-mail address.");
			document.forms.Form.address.focus();
		}
		else
		{
			correct = true;
		}
	}

	if((filled == true) && correct)
	{
		document.forms.Form.submit();
	}
}