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());
  //document.cookie = "lvsid=" + value ;//+ ((expiredays==null) ? "" : ";expires=" + exdate.toGMTString());
  //alert(value);
}

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 checkUname()
{
  username=getCookie('uname');
  if (username!=null && username!="")
  {
    //alert('Welcome again '+username+'!');
    return username;
  }
  else 
  {
    //username=prompt('Please enter your name:',"");
//    if (username!=null && username!="")
//    {
//      setCookie('uname',username,365);
//    }
  }
}

function getUname()
{
  username=getCookie('uname');
  if (username!=null && username!="")
  {
    document.getElementById("txUName").value = username;
  }
}

function setlvs(lvsid)
{
  lvsstr = "" + lvsid;
  setCookie('lvsid',lvsstr,30);
}

function clearlvs()
{
 setCookie('lvsid',"",-1);
}

function checklvs()
{

  lvsid=getCookie('lvsid');
  if (lvsid!=null && lvsid!="")
  {
    //document.getElementById("txlvsid").value = lvsid;
    return lvsid;
  }
  else
    return 0;
}

function reOpen(floor,lvs)
{
  window.open("floorPlan.aspx?floor="+floor+"&lvs=" + lvs,"_self","","");
}