// JavaScript Document



function validate() {

	

	if(document.email_form.name_first.value.length < 1) {

		window.alert("Please enter your first name.");

		return false;		

	}

			

	if(document.email_form.name_last.value.length < 1) {

		window.alert("Please enter your last name.");

		return false;		

	}

	

	if(document.email_form.email.value.length < 1 && document.email_form.phone.value.length < 1) {

		window.alert("Please enter an email address or your phone number.");

		return false;	

	}

	

	if(document.email_form.email.value.length < 7 && document.email_form.email.value.length > 1) {

		window.alert("Invalid email address. Please enter a valid email address or your phone number.");

		return false;		

	}

	

	if(document.email_form.phone.value.length < 10 && document.email_form.phone.value.length > 1) {

		window.alert("Invalid phone number. Please enter a valid phone number or your email address.");

		return false;		

	}

	

	if(document.email_form.phone.value.length > 14) {

		window.alert("Invalid phone number. Please enter a valid phone number or your email address.");

		return false;		

	}

	

	return true;

}