function checkCookie()
{

username=getCookie('username');
if (username=="franio")
//if (username!==null && username!=="")

  {
  	
	out_html = "  <h1>masz ciacho</h1>\n";	
    //el = document.getElementById("overlay");
	//el.style.visibility = (el.style.visibility == "visible") ? "hidden" : "visible";
	//window.showModalDialog('ok.php','page','toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=600,height=410,left=150,top=150,titlebar=no');
	//document.getElementById('plan').innerHTML = out_html;
  }

else if(username!=null)
  {
   //username="";
   out_html = "  <h1> dostales ciacho</h1>\n";
   el = document.getElementById("overlay");
   el.style.visibility = (el.style.visibility == "visible") ? "hidden" : "visible";   //window.open('ok.php','page','toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=535,height=308,left=150,top=150,titlebar=no');
   //document.getElementById('plan').innerHTML = out_html; 
  
  }
}




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