var expHours = 48; // number of hours the cookie should last (0 will cause it to always pop up)
var page = "./_popup.shtml";

var popWidth = 700;
var popHeight = 650;
var popLocation = "no";
var popToolbar = "no";
var popMenubar = "no";
var popResizeable = "yes";
var popScrollbars = "yes";
//var windowprops = "left=10,top=10,width=700,height=650,location=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes";

function GetCookie (name)
{ 
  var arg = name + "="; 
  var alen = arg.length; 
  var clen = document.cookie.length; 
  var i = 0; 

  while (i < clen)
  { 
    var j = i + alen; 

    if (document.cookie.substring(i, j) == arg) 
      return getCookieVal (j); 

    i = document.cookie.indexOf(" ", i) + 1; 
    if (i == 0) break; 
  } 
  return null;
}

function SetCookie (name, value)
{ 
  var argv = SetCookie.arguments; 
  var argc = SetCookie.arguments.length; 
  var expires = (argc > 2) ? argv[2] : null; 
  var path = (argc > 3) ? argv[3] : null; 
  var domain = (argc > 4) ? argv[4] : null; 
  var secure = (argc > 5) ? argv[5] : false; 

  document.cookie = name + "=" + escape (value) + 
  ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
  ((path == null) ? "" : ("; path=" + path)) + 
  ((domain == null) ? "" : ("; domain=" + domain)) + 
  ((secure == true) ? "; secure" : "");
}

function DeleteCookie (name)
{ 
  var exp = new Date(); 
  exp.setTime (exp.getTime() - 1); 
  var cval = GetCookie (name); 
  document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

var exp = new Date(); 
exp.setTime(exp.getTime() + (expHours*60*60*1000));

function amt()
{
  var count = GetCookie('count')
  if(count == null)
  {
    SetCookie('count','1')
    return 1
  }
  else
  {
    var newcount = parseInt(count) + 1;
    DeleteCookie('count')
    SetCookie('count',newcount,exp)
    return count
  }
}

function getCookieVal(offset)
{
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
  endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function doPopup(popURL, popLeft, popTop)
{
  var count = GetCookie('count');
  
  if (window.screen)
  {
    var winLeft = window.screenX;
    var winTop = window.screenY;
    var winWidth = window.outerWidth;
    var winHeight = window.outerHeight;
    
    popLeft = winLeft + ((winWidth - popWidth) / 2);
    popTop = winTop + ((winHeight - popHeight) / 2);
  }

  if (count == null)
  {
    count=1;
    SetCookie('count', count, exp);
    window.open(popURL, null, "left="+popLeft+","+
                            "top="+popTop+","+
                            "width="+popWidth+","+
                            "height="+popHeight+","+
                            "location="+popLocation+","+
                            "toolbar="+popToolbar+","+
                            "menubar="+popMenubar+","+
                            "resizeable="+popResizeable+","+
                            "scrollbars="+popScrollbars);
  }
  else
  {
    count++;
    SetCookie('count', count, exp);
    if (count <= 1)
    {
      window.open(popURL, null, "left="+popLeft+","+
                              "top="+popTop+","+
                              "width="+popWidth+","+
                              "height="+popHeight+","+
                              "location="+popLocation+","+
                              "toolbar="+popToolbar+","+
                              "menubar="+popMenubar+","+
                              "resizeable="+popResizeable+","+
                              "scrollbars="+popScrollbars);
    }
  }
}

function targetopener(mylink, closeme, closeonly)
{
  if (! (window.focus && window.opener))return true;

  window.opener.focus();

  if (! closeonly)window.opener.location.href=mylink.href;
  if (closeme)window.close();

  return false;
}