function emailStrip (input) {
	inst = input.value;
	garbage = "!£$%&*()}^{:?><,/;#=\|";
	var retst = "";
	for (i = 0; i < inst.length; i++) {
		var ch = inst.charAt(i);
		if (garbage.indexOf(ch) == -1) retst += ch;
	}
	input.value = retst;
}
function checkrequired() {
	if(document.form.email.value == "") {
		alert('Please enter your email address!');
		document.form.email.focus();
		return false;
	}
	inemail = document.form.email.value;
        split1 = inemail.split("@");
	split2 = inemail.split(".");
        if (split1.length < 2) {
            	alert('There seems to be an error with your email address - please check!');
                document.form.email.focus();
		return false;
        }
        if (split2.length < 2) {
            	alert('There seems to be an error with your email address - please check!');
                document.form.email.focus();
		return false;
	}
return true;
}