function getQueryVariable(variable)
{ var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++)
  { var pair = vars[i].split("=");
    if (pair[0] == variable)
    { return pair[1];
    }
  }
}

function SetCookie (name,value,expires,path,domain,secure)
{       document.cookie = name + "=" + escape(value) +
          ((expires) ? "; expires=" + expires.toGMTString() : "") +
          ((path) ? "; path=" + path : "") +
          ((domain) ? "; domain=" + domain : "") +
          ((secure) ? "; secure" : "");
}
function SetCookie (name,value,expires,path,domain,secure)
{       document.cookie = name + "=" + escape(value) +
          ((expires) ? "; expires=" + expires.toGMTString() : "") +
          ((path) ? "; path=" + path : "") +
          ((domain) ? "; domain=" + domain : "") +
          ((secure) ? "; secure" : "");
}
function DeleteCookie (name,path,domain)
{       if(GetCookie(name))
        {       document.cookie = name + "=" +
                  ((path) ? "; path=" + path : "") +
                  ((domain) ? "; domain=" + domain : "") +
                  "; expires=Thu, 01-Jan-70 00:00:01 GMT";
        }
}
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 getCookieVal (offset)
{       var endstr = document.cookie.indexOf (";", offset);
        if (endstr == -1)
          endstr = document.cookie.length;
        return unescape(document.cookie.substring(offset, endstr));
}