function SetCookie(cookieName,cookieValue,nDays) {
var today = new Date();
var expire = new Date();
if (nDays==null || nDays==0) nDays=1;
expire.setTime(today.getTime() + 1000*nDays);
document.cookie = cookieName+"="+escape(cookieValue)+ ";expires="+expire.toGMTString();
}
var wsize=screen.width;
SetCookie('windsize',wsize,5);

function nabidka(idex,cpmenu){
var divs = document.getElementsByTagName("a");
for (var i=0; i<divs.length; i++)
 {if (divs[i].id.indexOf("vymaz") == 0) 
  {
   divs[i].style.backgroundColor='white';
   divs[i].style.border="0";
  }
 }

objekt=document.getElementById('i'+idex);
if (objekt.style.display == 'none')
objekt.style.display='';
else
objekt.style.display='none';

odkaz=document.getElementById('a'+idex);
odkaz.style.backgroundColor='#f6fff8';
odkaz.style.borderLeft= "1px solid #df4242";
odkaz.style.borderRight= "1px solid #df4242";

objektmenu=document.getElementById('vymaz'+cpmenu);
objektmenu.style.backgroundColor='#e7ffef';
objektmenu.style.borderLeft= "1px solid #df4242";
objektmenu.style.borderRight= "1px solid #df4242";
}