var quoteMark = unescape( '%22' );

// ********************Cookie Routines **********************

function setCookie (cookieName, cookieValue, expires, path, domain, 
secure) {
  document.cookie = 
    escape(cookieName) + '=' + escape(cookieValue) 
    + (expires ? '; EXPIRES=' + expires.toGMTString() : '')
    + (path ? '; PATH=' + path : '')
    + (domain ? '; DOMAIN=' + domain : '')
    + (secure ? '; SECURE' : '');
}

function getCookie (cookieName) {
  var cookieValue = null;
  var posName = document.cookie.indexOf(escape(cookieName) + '=');
  if (posName != -1) {
    var posValue = posName + (escape(cookieName) + '=').length;
    var endPos = document.cookie.indexOf(';', posValue);
    if (endPos != -1)
      cookieValue = unescape(document.cookie.substring(posValue, 
endPos));
    else
      cookieValue = unescape(document.cookie.substring(posValue));
  }
  return cookieValue;
}

// ***************** End of Cookie Routines *****************


function grantAccess() {
var now = new Date();
var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);
var nextyear = new Date(now.getTime() + 1000 * 60 * 60 * 24 * 365);
var tomorrow = new Date(now.getTime() + 1000 * 60 * 60 * 24);
var theCookieName = "infandibulus"
setCookie(theCookieName, 'fdircookie', tomorrow);
	} // grantAccess

function checkString(InString,subString,backtrack)
// check for subString
// if backtrack = false, returns -1 if not found, and left-most location in string if found
// if backtrack = true, returns -1 if not found, and right-most location in string if found
// note that location is to the left of the substring in both cases
{
var found = -1;
var theString = InString;
var Length = theString.length;
var symbLength = subString.length;
for (var i = Length- symbLength; i >-1; i--)
	{	
	TempChar=theString.substring (i, i+ symbLength);
	if (TempChar == subString) 
			{
			found = i;
			if (backtrack) i = -1
			}
	} // i
return(found);
} // check

function hideContent(d) {
document.getElementById(d).style.visibility = "hidden";
}
function showContent(d) {
document.getElementById(d).style.visibility = "visible";
}


function goTo(place) {
if (place == "calc") {this.window.location = '../tccalcp.html'}
else if (place == "finite") {this.window.location = '../tcfinitep.html'}
}