function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function valRegister(){
	if(frm.title.value == "null"){
		alert("Please select your title.");
		frm.title.focus();
		return false;
	}else if(!frm.firstname.value){
		alert("Please enter your first name.");
		frm.firstname.focus();
		return false;
	}else if(!frm.surname.value){
		alert("Please enter your surname.");
		frm.surname.focus();
		return false;
	}else if(!frm.address.value){
		alert("Please enter your address.");
		frm.address.focus();
		return false;
	}else if(!frm.town.value){
		alert("Please enter your town or city.");
		frm.town.focus();
		return false;
	}else if(!frm.postcode.value){
		alert("Please enter your postcode.");
		frm.postcode.focus();
		return false;
	}else if(!frm.phone.value){
		alert("Please enter your telephone number.");
		frm.phone.focus();
		return false;
	}else if(!frm.walk.value){
		alert("Please select the walk you wish to take part in.");
		frm.walk.focus();
		return false;
	}else{
		return valEmail();
	}
}

function valFriend(){
var userEmail = document.frm.femail.value;
var atLoc = userEmail.indexOf("@",1);
var dotLoc = userEmail.indexOf(".",atLoc+2);
var len = userEmail.length;
if((atLoc>0)&&(dotLoc>0)&&(len>dotLoc+2)){
  return valEmail();
}else{
  alert("Please enter a valid email address for your friend.");
  document.frm.femail.focus();
  return false;
}
}

function valEmail(){
var userEmail = document.frm.email.value;
var atLoc = userEmail.indexOf("@",1);
var dotLoc = userEmail.indexOf(".",atLoc+2);
var len = userEmail.length;
if((atLoc>0)&&(dotLoc>0)&&(len>dotLoc+2)){
  return true;
}else{
  alert("Please enter a valid email address");
  document.frm.email.focus();
  return false;
}
}