/******************************************************************
* A library of very useful cookie routines.
*******************************************************************/



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

    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() - 100);  // This cookie is history
      var cval = GetCookie (name);
      document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
    }

    // this func asks for a number of days and gives back a Date() that is
    // that many days from now.
    function DaystoDate(expDays) {
 	var exp = new Date(); 
 	exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
	window.alert(expDays*24*60*60*1000);
	return exp;
    }

    // this func asks for a number of hours and gives back a Date() that is
    // that many hours from now.
    function HourstoDate(expHours) {
        var exp = new Date();
        exp.setTime(exp.getTime() + (expHours*60*60*1000));
        window.alert(expHours*60*60*1000);
        return exp;
    }

    function createDate(Month, date, Year, Hour, Minutes, Seconds) {
	var expiration = new Date();
	expiration.setMonth( Month );
        expiration.setDate( date );
        expiration.setYear( Year );
        expiration.setHours( Hour );
        expiration.setMinutes( Minutes );
        expiration.setSeconds( Seconds );
	return expiration;
    }

    function canBrowserSetCookie() {
	var r;
	SetCookie("canBrowserSetCookie", "true");
	if (GetCookie("canBrowserSetCookie") == "true") {
		DeleteCookie("canBrowserSetCookie");
		r=true;
	} else {
		r=false;
	}
	return r;
    }