// Signup form -------------------------------------------------------
function displaySignup(cmd, file) {
 req.open('GET', file+'?'+cmd);
 req.onreadystatechange = handleResponse;
 req.send(null);
 return false;
}

function handleResponse() {
	if(req.readyState == 4){
 		var response = req.responseText;
		document.getElementById("results").innerHTML = response;
		// Change opacity of everyone but the result div  
		document.getElementById('top').style.opacity = .3;
		document.getElementById('navbar').style.opacity = .3;
		document.getElementById('content').style.opacity = .3;
		document.getElementById('footer').style.opacity = .3;
		document.getElementById('signup').style.display = '';
	}
}

function restoreOp() {
 // Restore opacity of everyone 
 document.getElementById('top').style.opacity = 1.;
 document.getElementById('navbar').style.opacity = 1.;
 document.getElementById('content').style.opacity = 1.;
 document.getElementById('footer').style.opacity = 1.;}