// Cookie Class Definition /////////////////////////////////////////////////////////////////////////////////////////////
// The constructor function: creates a cookie object for the specified
// document, with a specified name and optional attributes.// Arguments:
//   document: The Document object that the cookie is stored for. Required.
//   name:     A string that specifies a name for the cookie. Required.
//   hours:    An optional number that specifies the number of hours from now
//             that the cookie should expire.
//   path:     An optional string that specifies the cookie path attribute.
//   domain:   An optional string that specifies the cookie domain attribute.
//   secure:   An optional Boolean value that, if true, requests a secure cookie.
function createCookie(name,value,days) {
	if (days) {
	var date = new Date();
    	date.setTime(date.getTime()+(days*24*60*60*1000));
   	 var expires = "; expires="+date.toGMTString();
 	 }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function readCookieOLD(name) {
 var nameEQ = name + "=";
 var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
	 var c = ca[i];
		 if (c.indexOf(' style')!=-1){
               		var newstring = c.replace( " style=", "") ;
		return newstring;
		}
	 if (c.indexOf('style')!=-1){
               		var newstring = c.replace( "style=", "") ;
		return newstring;
		}
     	}
  }
//
function Cookie(document, name, hours, path, domain, secure)
{
	// All the predefined properties of this object begin with '$' to distinguish them from other properties which are the values to
	// be stored in the cookie.    
	this.$document = document;
	this.$name = name;
	if ( hours )
		this.$expiration = new Date( (new Date()).getTime() + hours * 3600000);
	else
		this.$expiration = null;
	//	this.$expiration = null;
	if (path) this.$path = path; else this.$path = null;
	if (domain) this.$domain = domain; else this.$domain = null;
	if (secure) this.$secure = true; else this.$secure = false;
}
// This function is the store() method of the Cookie object.
function _Cookie_store()
{
	
	// First, loop through the properties of the Cookie object and put together the value of the cookie. Since cookies use the
    	// equals sign and semicolons as separators, we'll use colons and ampersands for the individual state variables we store 
    	// within a single cookie value. Note that we escape the value of each state variable, in case it contains punctuation or other
    	// illegal characters.    
	var cookieval = "";
	for(var prop in this) {
		// Ignore properties with names that begin with '$' and also methods.
		if ((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function')) 
			continue;
		if (cookieval != "") cookieval += '&';
		cookieval += prop + ':' + escape(this[prop]);
	}
    	// Now that we have the value of the cookie, put together the complete cookie string, which includes the name and the various
    	// attributes specified when the Cookie object was created.
	var cookie = this.$name + '=' + cookieval;
	if (this.$expiration)
		cookie += '; expires=' + this.$expiration.toGMTString();
	if (this.$path) cookie += '; path=' + this.$path;
	if (this.$domain) cookie += '; domain=' + this.$domain;
	if (this.$secure) cookie += '; secure';
	// Now store the cookie by setting the magic Document.cookie property.
	this.$document.cookie = cookie;
}
// This function is the load() method of the Cookie object.
function _Cookie_load()
{
	// First, get a list of all cookies that pertain to this document.
	// We do this by reading the magic Document.cookie property.
	var allcookies = this.$document.cookie;
	if (allcookies == "") return false;
//alert( 'debug: Cookie_load(): ' + allcookies );
    
	// Now extract just the named cookie from that list.
	var start = allcookies.indexOf(this.$name + '=');
	if (start == -1) return false;   // Cookie not defined for this page.
	start += this.$name.length + 1;  // Skip name and equals sign.
	var end = allcookies.indexOf(';', start);
	if (end == -1) end = allcookies.length;
	var cookieval = allcookies.substring(start, end);
	
	// Now that we've extracted the value of the named cookie, we've got to break that value down into individual state variable 
	// names and values. The name/value pairs are separated from each other by ampersands, and the individual names and values are
	// separated from each other by colons. We use the split method to parse everything.
	var a = cookieval.split('&');    // Break it into array of name/value pairs.
	for(var i=0; i < a.length; i++)  // Break each pair into an array.
		a[i] = a[i].split(':');
	// Now that we've parsed the cookie value, set all the names and values of the state variables in this Cookie object. 
	// Note that we unescape() the property value, because we called escape() when we stored it.
	for(var i = 0; i < a.length; i++) {
		this[a[i][0]] = unescape(a[i][1]);
	}
	
	return true;
}
// This function is the remove() method of the Cookie object.
function _Cookie_remove()
{    
	var cookie;    
	cookie = this.$name + '=';
	if (this.$path) cookie += '; path=' + this.$path;
	if (this.$domain) cookie += '; domain=' + this.$domain;
	cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';
	this.$document.cookie = cookie;
}
new Cookie();
Cookie.prototype.store = _Cookie_store;
Cookie.prototype.load = _Cookie_load;
Cookie.prototype.remove = _Cookie_remove;
//var navdata = new Cookie( document, 'cmnav', 1, '/' );                    This line of code is now situated in the forms etc that are using the cookies e.g. fm_CardLine.onLoad()