rray.prototype.in_array = function(p_val) {
    for(var i = 0, l = this.length; i < l; i++) {
        if(this[i] == p_val) {
            return true;
        }
    }
    return false;
}

var us = new Array(2476,3071,2574,2575,2464,2918);
var ca = new Array(2869,2577,2969,2868,2559,2483);
var uk = new Array(1925,1361,1379,1932,1147,1358);
var au = new Array(1287,1573,1284,2262,1279,1288);
var de = new Array(2756,2843,2926,2844,2801,1692);

var offers = document.getElementById("selUnwAdd");
var blacklistOffers = Array();

var wantedOffers_us = Array();
var wantedOffers_ca = Array();
var wantedOffers_uk = Array();
var wantedOffers_au = Array();
var wantedOffers_de = Array();

for (var i=0; i < offers.options.length; i++) {
    var offer = offers[i];

    if (offer.text.match(/\(US\)/s))
    {
        if (us.in_array(offer.value))
            wantedOffers_us[wantedOffers_us.length] = offer;
        else
            blacklistOffers[blacklistOffers.length] = offer;
    }
    else if (offer.text.match(/\(CA\)/s))
    {
        if (ca.in_array(offer.value))
            wantedOffers_ca[wantedOffers_ca.length] = offer;
        else
            blacklistOffers[blacklistOffers.length] = offer;
    }
    else if (offer.text.match(/\(GB\)/s))
    {
        if (uk.in_array(offer.value))
            wantedOffers_uk[wantedOffers_uk.length] = offer;
        else
            blacklistOffers[blacklistOffers.length] = offer;
    }
    else if (offer.text.match(/\(AU\)/s))
    {
        if (au.in_array(offer.value))
            wantedOffers_au[wantedOffers_au.length] = offer;
        else
            blacklistOffers[blacklistOffers.length] = offer;
    }
    else if (offer.text.match(/\(DE\)/s))
    {
        if (de.in_array(offer.value))
            wantedOffers_de[wantedOffers_de.length] = offer;
    }
}

var unWanted = document.getElementById('selUnwanted');

for (var i = 0; i != blacklistOffers.length; i++)
{
    try {
      unWanted.add(blacklistOffers[i], null);
    } catch(ex) {
      unWanted.add(blacklistOffers[i]);
    }
}

wanted  = document.getElementById('selPreferred');

for (var i = 0; i != wantedOffers_us.length; i++)
{
    try {
      wanted.add(wantedOffers_us[i], null);
    } catch(ex) {
      wanted.add(wantedOffers_us[i]);
    }
}

for (var i = 0; i != wantedOffers_ca.length; i++)
{
    try {
      wanted.add(wantedOffers_ca[i], null);
    } catch(ex) {
      wanted.add(wantedOffers_ca[i]);
    }
}

for (var i = 0; i != wantedOffers_uk.length; i++)
{
    try {
      wanted.add(wantedOffers_uk[i], null);
    } catch(ex) {
      wanted.add(wantedOffers_uk[i]);
    }
}

for (var i = 0; i != wantedOffers_au.length; i++)
{
    try {
      wanted.add(wantedOffers_au[i], null);
    } catch(ex) {
      wanted.add(wantedOffers_au[i]);
    }
}

for (var i = 0; i != wantedOffers_de.length; i++)
{
    try {
      wanted.add(wantedOffers_de[i], null);
    } catch(ex) {
      wanted.add(wantedOffers_de[i]);
    }
}