function checkForm(that) {
	var errmsg = '';
	if (that.Name.value.length < 1) {
		errmsg += '=> Enter your Name\n';
	}
	if (that.Email.value.length < 1) {
		errmsg += '=> Enter your E-mail Address\n';
	}
	if (!isValidEmail(that.Email.value)) {
		errmsg += '=> Enter a valid E-mail Address\n';
	}
	if (that.Comments.value.length < 1) {
		errmsg += '=> Enter a Comment\n';
	}
	if (errmsg.length > 1) {
		alert('Please fix the following errors:\n\n'+errmsg);
		return false;
	} else {
		return true;
	}
}

function isValidEmail(address) {
	if (address != '' && address.search) {
		if (address.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1) {
	  	return true;
		} else {
			return false;
	  }
	} else {
		return true;
	}
}