function setCookie(cookieName, cookieValue, cookiePath, cookieExpires) 

      { 

        cookieValue = escape(cookieValue); 

        if (cookieExpires == "") 

          { 

            var nowDate = new Date(); 

            nowDate.setMonth(nowDate.getMonth() + 6); 

            cookieExpires = nowDate.toGMTString(); 

          }



        if (cookiePath != "") 

          {

            cookiePath = ";Path=" + cookiePath; 

          } 



       document.cookie = cookieName + "=" + cookieValue + ";expires=" + cookieExpires + cookiePath; 

      } 



    function getCookieValue(name) 

      { 

        var cookieString = document.cookie; 

        var index = cookieString.indexOf(name + "="); 



        if (index == -1) return null; 



        index = cookieString.indexOf("=", index) + 1; 

        var endstr = cookieString.indexOf(";", index); 



        if (endstr == -1) endstr = cookieString.length; 



        return unescape(cookieString.substring(index, endstr)); 

      } 



	function OpenWin(URL, winName, width, height, scroll)

		{

			var winLeft = (screen.width - width) / 2;

			var winTop = (screen.height - height) / 2;

					

			winData = 'height='+height+',width='+width+',top='+winTop+',left='+winLeft+',scrollbars='+scroll+',resizable';

			win = window.open(URL, winName, winData);

					

			if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }

		}





  function DoPopupNL()

    {

      var NL = getCookieValue('site_newsletter'); 



      if(NL == null)

        {

          // Show the newsletter signup popup

          setCookie('site_newsletter', 'true', '', '');

          OpenWin('popupnl.php', 'popupNL', 400, 150, 'no');          

        }

    }