function checkPassword (strng) {
var error = "";
var illegalChars = /[\W_]/; // allow only letters and numbers

if (strng == "") {
	error = "You didn't enter a password.\n";
}

if ((strng.length < 6) || (strng.length > 8)) {
	error = "The password is the wrong length.\n";
} else if (illegalChars.test(strng)) {
	error = "The password contains illegal characters.\n";
} else if (!((strng.search(/(a-z)+/))
	&& (strng.search(/(A-Z)+/))
	&& (strng.search(/(0-9)+/)))) {
	error = "The password must contain at least one uppercase "+
		"letter, one lowercase letter, and one numeral.\n";
}

}

function checkEmail () {
var error="";
var emailFilter=/^.+@.+\..{2,3}$/;
var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/

if (!(emailFilter.test(strng))) { 
	error = "Please enter a valid email address.\n";
}

if (strng.match(illegalChars)) {
	error = "The email address contains illegal characters.\n";
}

}