var Found     = false;

var Current   = new Array();
var Sponsors  = new Array();

var MaxValue  = 11;
var NumUnique = 4;
var Count     = 0;

var Current   = new Array(NumUnique);
var Sponsors  = new Array(NumUnique);

Sponsors[0] = new Array('sponsor1.png', 'http://www.peppers.com.au/');
Sponsors[1] = new Array('sponsor2.png', 'http://www.breakfree.com.au/');
Sponsors[2] = new Array('sponsor3.png', 'http://www.mantra.com.au/');
Sponsors[3] = new Array('sponsor5.png', 'http://www.stellaresorts.com.au/');
Sponsors[4] = new Array('sponsor6.png', 'http://www.cairns.com.au/holidays');
Sponsors[5] = new Array('sponsor7.png', 'http://www.webvantage.com.au/');
Sponsors[6] = new Array('sponsor8.png', 'http://theradio.com.au/Hitmusic.aspx?PageID=1112&Station=HOTFM_103.5_Cairns');
Sponsors[7] = new Array('sponsor9.png', 'http://www.avis.com.au/');
Sponsors[8] = new Array('sponsor10.png', 'http://www.telstra.com/countrywide/');
Sponsors[9] = new Array('sponsor11.png', 'http://www.budget.com.au/');
Sponsors[10] = new Array('sponsor12.png', 'http://www.tq.com.au/');
Sponsors[11] = new Array('sponsor13.png', 'http://www.qantas.com.au/');

GetUnique();

function GetUnique() {
  for(i=0; Count<NumUnique; Count++) {
    Found = false;
    var rndValue = get_random();
    var j=0;
    for(j=0; j<Current.length; j++) {
      if(Current[j] == rndValue) {
        Found = true;
        break;
      }
    }
    if(Found) {
      Count--;
    } else {
      Current[Count] = rndValue;
    }
  }
}

function get_random() {
  var ranNum = Math.round(Math.random()*MaxValue);
  return ranNum;
}

function generateSponsors() {
  document.write('<a href="'+Sponsors[Current[0]][1]+'" target="_blank"><img src="http://www.whatistnq.com/images/sponsors/'+Sponsors[Current[0]][0]+'" alt="" width="205" height="75" class="noborder" /></a>');
  document.write('<a href="'+Sponsors[Current[1]][1]+'" target="_blank"><img src="http://www.whatistnq.com/images/sponsors/'+Sponsors[Current[1]][0]+'" alt="" width="205" height="75" class="noborder" /></a>');
  document.write('<a href="'+Sponsors[Current[2]][1]+'" target="_blank"><img src="http://www.whatistnq.com/images/sponsors/'+Sponsors[Current[2]][0]+'" alt="" width="205" height="75" class="noborder" /></a>');
  document.write('<a href="'+Sponsors[Current[3]][1]+'" target="_blank"><img src="http://www.whatistnq.com/images/sponsors/'+Sponsors[Current[3]][0]+'" alt="" width="205" height="75" class="noborder" /></a>');
 
  return true;
}