// JavaScript Document

function validate(my_form){
	if(my_form.elements['first_name'].value.trim() == ""){
		my_form.elements['first_name'].focus();
		alert("First name required.");
	}
	else if(my_form.elements['last_name'].value.trim() == ""){
		my_form.elements['last_name'].focus();
		alert("Last name required.");
	}
	else if(my_form.elements['email'].value.trim() == ""){
		my_form.elements['email'].focus();
		alert("Email required.");
	}
	else if(!isEmail(my_form.elements['email'].value)){
		my_form.elements['email'].focus();
		alert("You must provide a valid email address.");
	}
	else{
		return true;	
	}

	return false;	
}