function checkForm(f){
	var errors="";

	if(!f.sender_fname.value){errors+="\n + Your First Name";}
	if(!f.sender_lname.value){errors+="\n + Your Last Name";}
	if(!f.sender_email.value){
		errors+="\n + Your Email";
	}else if(f.sender_email.value != f.sender_email_confirm.value){
		errors+="\n + Confirm your Email";
	}

	if(errors){
		alert("The following fields need to be completed:"+errors);
		return false;
	}
	return true;
}