function toggle(x){
	document.getElementById('home').style.display = 'none';
	document.getElementById('portfolio').style.display = 'none';
	document.getElementById('contact').style.display = 'none';
	document.getElementById('login').style.display = 'none';
	document.getElementById(x).style.display = 'block';
	}
	function changeBgImage (image, id) {
	var element = document.getElementById(id);
	element.style.backgroundImage = "url("+image+")";
}
function validateform() {
	if (document.deadlinecontact.deadlinecontactname.value=='') {alert("Please give us your name.");document.deadlinecontact.deadlinecontactname.focus();return false;}
	if (document.deadlinecontact.deadlinecontactemail.value=='') {alert("Please give us a contact email address.");document.deadlinecontact.deadlinecontactname.focus();return false;}
}