var backImage = new Array();

backImage[0] = "images/img02.jpg";
backImage[1] = "images/img05.jpg";
backImage[2] = "images/img03.jpg";

function changeGallery(source){
document.getElementById('gallery-img').src = source;
}

function changeBGImage(whichImage){
document.getElementById('background-img').src = backImage[whichImage];
 zxcCreateCookie('nme',whichImage,1); // change 1 to the number of days presistance required

}

function zxcCreateCookie(nme,v,days){
 document.cookie=nme+'='+v+';expires='+(new Date(new Date().getTime()+days*86400000).toGMTString())+';path=/';
}

function zxcReadCookie(nme){
 nme+='=';
 var split = document.cookie.split(';');
 for(var z0=0;z0<split.length;z0++){
  var s=split[z0];
  while (s.charAt(0)==' ') s=s.substring(1,s.length);
  if (s.indexOf(nme)==0) return s.substring(nme.length,s.length);
 }
 return null;
}

function GetCookie(nme){
 changeBGImage(zxcReadCookie(nme)||0);
}

var x = 0;

function bgCycle()
{
	changeBGImage(x);
	x++;
	if(x==3)
		x=0;
}