function setFocus(aField) {
	document.forms[0][aField].focus();
}

function isEmpty(aTextField) {
	if ((document.forms[0][aTextField].value.length==0) || (document.forms[0][aTextField].value==null)) {
		return true;
	} else { 
		return false;
	}
}
	
function validate() {
	if (isEmpty("name")) {
		alert("Please fill in your name.");
		setFocus("name");
		return false;
	}

	if (isEmpty("email")) {
		alert("Please fill in your email.");
		setFocus("email");
		return false;
	}
		return true;
}