function checkLogin(){
	var username = document.getElementById('username');
	var pass = document.getElementById('password');
	
	if(isEmpty(username, 1)){
		if(isEmpty(pass, 2)){
			return true;
		}
	}
	return false;
}

function isEmpty(elem, which){
	if(elem.value.length == 0){
		document.getElementById("suberr").style.color = "#424242";
		if (which == 1) {
			document.getElementById("suberr").innerHTML = "<font size=\"-1\" color=\"#424242\"><i>Please enter your username</i></font>";
		} else if (which == 2) {
			document.getElementById("suberr").innerHTML = "<font size=\"-1\" color=\"#424242\"><i>Please enter your password</i></font>";
		} else if (which == 3) {
			document.getElementById("suberr").innerHTML = "<font size=\"-1\" color=\"#424242\"><i>Please enter your First Name</i></font>";
		} else if (which == 4) {
			document.getElementById("suberr").innerHTML = "<font size=\"-1\" color=\"#424242\"><i>Please enter your Last Name</i></font>";
		} else if (which == 5) {
			document.getElementById("suberr").innerHTML = "<font size=\"-1\" color=\"#424242\"><i>Please enter your Email</i></font>";
		}
		elem.focus();
		return false;
	}
	return true;
}