var docElmCon, docElmPub, docElmVol
function show_con() {
  docElmCon.style.display = "block";
  docElmPub.style.display = "none";
  docElmVol.style.display = "none";
  show_vol = true;
}

function show_pub() {
  docElmCon.style.display = "none";
  docElmPub.style.display = "block";
  docElmVol.style.display = "none";
  show_vol = true;
}

function show_vol() {
  docElmCon.style.display = "none";
  docElmPub.style.display = "none";
  docElmVol.style.display = "block";
  show_vol = true;
}

function contactSetup(){
    var querystr, tmp;
    docElmCon = document.getElementById("contact");
    docElmPub = document.getElementById("publicity");
    docElmVol = document.getElementById("volunteer");
	querystr = unescape(document.URL).split("?");
	tmp = querystr[1]=="contact"?show_con():false;
	tmp = querystr[1]=="publicity"?show_pub():false;
    tmp = querystr[1]=="volunteer"?show_vol():false;
}

addLoadEvent(contactSetup);

function form_validate(){
	var form_obj = document.vform;
	var i=0, s=0;

	if (form_obj.fname.value=="" || form_obj.lname.value==""){
		alert( "Please provide your name.");
		return( false);
	}

	if (form_obj.phone.length==0 && form_obj.email.value.length==0){
		alert("Please provide a phone number or an email address.");
		form_obj.phone.focus();
		return(false);
	} else {
    if (form_obj.phone.value.length!=10 && form_obj.phone.value.length!=0){
      alert("Please enter a 10 digit phone number.");
      form_obj.phone.focus();
      return (false);
    }

    var regx = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;
    if (!regx.test(form_obj.email.value) && form_obj.email.value.length!=0){
      alert("Invalid email address. Please re-enter your email address.");
      form_obj.email.focus();
      return (false);
    }
  }
	s = 0;
	for (i=0;i<4;i++){
		if (form_obj.size[i].checked){ s=++s;}
	}
	if (s==0) {
		alert("Please pick a T-shirt size.")
		return(false);
	}
	s = 0;
	for (i=1;i<9;i++){
		document.getElementById("int"+i).checked?s=++s:s=s;
	}
	if (s==0){
		alert("Please select an area that your are interested in.");
		return(false);
	}
	return(true);
}
function fsubmit()
{
	var form_obj = document.vform;

	if (form_validate()){
		var btn_sub_obj = form_obj.btn_submit;
		btn_sub_obj.value = "Please Wait";
		btn_sub_obj.disabled;
		form_obj.submit();
		return(true);
	}
	else
	{	return(false);}
}