// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults

function 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=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 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 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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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

function toggle_visibility(id_to_hide, id_to_show) {
  var hide = document.getElementById(id_to_hide);
  var show = document.getElementById(id_to_show);
  if(hide.style.display == 'block')
    hide.style.display = 'none';
  else
    hide.style.display = 'block';

  if(show.style.display == 'none')
    show.style.display = 'block';
  else
    show.style.display = 'none';
}

function postcode_lookup(post_code_elem) {
  post_code = $F(post_code_elem);
  $('indicator').show();
  new Ajax.Updater({ success: 'addresses', failure: 'error' }, '/postcodes/lookup', {
                     parameters: 'post_code=' + post_code,
                     onComplete: function() { $('indicator').hide(); }
                   });
}

function postcode_lookup_exact(select_elem) {
  unique_delivery_point = $F(select_elem);
  $('indicator').show();
  new Ajax.Request('/postcodes/lookup_exact', {
                     parameters: 'unique_delivery_point=' + unique_delivery_point,
                     onComplete: function() { $('indicator').hide(); }
                   });

}