function checkErrors() {
	var errorCount = 0;
	
	if(document.forms['newsletter'].formForename.value == "") {
		document.getElementById('formForenameError').innerHTML = "<br />Please enter your forename";
		errorCount++;
	}
	else {
		document.getElementById('formForenameError').innerHTML = "";
		document.forms['newsletter'].formForename.style.background = "";
	}
	
	if(document.forms['newsletter'].formSurname.value == "") {
		document.getElementById('formSurnameError').innerHTML = "<br />Please enter your surname";
		errorCount++;
	}
	else {
		document.getElementById('formSurnameError').innerHTML = "";
		document.forms['newsletter'].formSurname.style.background = "";
	}
	
	if(document.forms['newsletter'].email.value != "") {
		if(document.forms['newsletter'].email.value.indexOf("@") < 1 || document.forms['newsletter'].email.value.lastIndexOf(".") < 1) {
			document.getElementById('emailError').innerHTML = "<br />Please enter a valid email address";
			errorCount++;
		}
		else {
			document.getElementById('emailError').innerHTML = "";
		}
	}
	
	if(document.forms['newsletter'].email.value == "") {
		document.getElementById('emailError').innerHTML = "<br />Please enter an email address";
		errorCount++;
	}
	
	if(document.forms['newsletter'].email.value != document.forms['newsletter'].emailChk.value) {
		document.getElementById('emailChkError').innerHTML = "<br />The email addresses you have entered do not match";
		errorCount++;
	}
	else {
		document.getElementById('emailChkError').innerHTML = "";
	}
	
	if(errorCount > 0) {
		return false;
	}
	return true;
}