var wincount;
var winname;
var winleft;
var wintop;
function openwin(fname)
{
	wincount = getCookie('popcount');
	if ((typeof(wincount) == 'undefined') || isNaN(wincount))
	{
		wincount = 1
	}
	else
	{
		++wincount
	};
	document.cookie='popcount=' + wincount;
	winname = 'popup' + wincount;
	if (window.screen.width >=1024)
	{
		winleft = (screen.availwidth/2) - 385;
		wintop = 200;
		param = 'scrollbars=yes,resizable=no,toolbar=no,width=770,height=400,left=' + winleft + ',top=' + wintop
		win = window.open(fname,winname,param);
	}
	else
	{
		winleft = (screen.availwidth/2) - 310;
		wintop =200;
		param = 'scrollbars=yes,resizable=no,toolbar=no,width=620,height=350,left=' + winleft + ',top=' + wintop
		win = window.open(fname,winname,param);
	};
}

function getCookie(Name) 
{
	var search = Name + '='
	if (document.cookie.length > 0)
	{ 
	 offset = document.cookie.indexOf(search)
	 if (offset != -1)
	 offset += search.length
	 end = document.cookie.indexOf(';', offset)
     if (end == -1)
	 end = document.cookie.length
	 return unescape(document.cookie.substring(offset, end))
	}
}