function cellImg(idCell, imgName) {
document.getElementById(idCell).style.backgroundImage = "url(" + imgName + ")";
zxcCreateCookie(idCell,imgName,1);
}

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

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}


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(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}
function Restore(){
 if(getCookie('backswap')) cellImg('backswap',getCookie('backswap'));
 if(getCookie('backswap2')) cellImg('backswap2',getCookie('backswap2'));
}