function homeIn() {
	document.getElementById('home').src = "images/jo%20home-hover.PNG";
}
function homeOut() {
	document.getElementById('home').src = "images/jo%20home.PNG";
}

function emailIn() {
	document.getElementById('email').src = "images/jo%20email-hover.PNG";
}
function emailOut() {
	document.getElementById('email').src = "images/jo%20email.PNG";
}

function enquiryIn() {
	document.getElementById('enquiry').src = "images/email_for_enquiry_icon_white-hover.jpg";
}
function enquiryOut() {
	document.getElementById('enquiry').src = "images/email_for_enquiry_icon_white.jpg";
}

function nextPage(current) {
	current ++;
	if (current > 9) {
		current = 1;
	}
	document.getElementById('image-swap').src = "images/Graphic%20Design/new/0" + current + "-graphic-design.jpg";
	document.getElementById('next').onclick = function() {nextPage(current);};
	document.getElementById('previous').onclick = function() {previousPage(current);};
}

function previousPage(current) {
	current --;
	if (current < 1) {
		current = 9;
	}
	document.getElementById('image-swap').src = "images/Graphic%20Design/new/0" + current + "-graphic-design.jpg";
	document.getElementById('next').onclick = function() {nextPage(current);};
	document.getElementById('previous').onclick = function() {previousPage(current);};
}