// 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 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.$expiration = null;
    if (path) this.$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;

    // 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]);
    }

    // We're done, so return the success code.
    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;
}

// Create a dummy Cookie object, so we can use the prototype object to make
// the functions above into methods.
new Cookie();
Cookie.prototype.store = _Cookie_store;
Cookie.prototype.load = _Cookie_load;
Cookie.prototype.remove = _Cookie_remove;

n=date.length;

function displaymain(i) 
	{
	parent.frames['main'].document.open();
	parent.frames['main'].document.write("<TABLE BORDER=1><TR>");
	parent.frames['main'].document.write("<TH>image #</TH>");
	parent.frames['main'].document.write("<TH>date</TH>");
	parent.frames['main'].document.write("<TH>caption</TH></TR><TR>"); 
	parent.frames['main'].document.write("<TD>"+i+"</TD>");
	parent.frames['main'].document.write("<TD>"+date[i]+"</TD>");
	parent.frames['main'].document.write("<TD>"+caption[i]+"</TD>"); 
	parent.frames['main'].document.write("</TR></TABLE>");
	/*parent.frames['main'].document.write('<IMG SRC="'+image[i]+' WIDTH='+parent.frames['main'].innerWidth+'"></P>');*/
	parent.frames['main'].document.write('<IMG SRC="'+image[i]+'"></P>');
	parent.frames['main'].document.close();
	} 
;
var nextslide=0;
var nslides=0;
var slideShowInterval=10000;
var slidetray;
function slideshow(index)
	{
	slidetray=index
	nslides=slidetray.length;
	shownext();
	}
;	
function shownext()
	{
	displaymain(slidetray[nextslide]);
	nextslide++;
	if(nextslide<=nslides-1)
		{	
		setTimeout('shownext()',slideShowInterval)
		}
	}
;

//===================================================================
//  The code above is the definition of the Cookie class.
//  The code below is a sample use of that class.
//===================================================================

// Create the cookie we'll use to save state for this web page.
// Since we're using the default path, this cookie will be accessible
// to all web pages in the same directory as this file or "below" it.
// Therefore, it should have a name that is unique among those pages.
// Note that we set the expiration to 10 days in the future.
var prefs = new Cookie(document, "dateOrder_imageSize_savePrefs",8760);

// First, try to read data stored in the cookie. If the cookie is not
// defined, or if it doesn't contain the data we need, then query the
// user for that data.
// 0 default is newest to oldest*/
 if (!prefs.dateOrder) 
	{
	prefs.dateOrder=1;
	};
if (!prefs.load() || !prefs.imageSize) 
	{
	prefs.savePrefs=0; /* 0 default is save in cookie*/
	};
if (!prefs.load() || !prefs.savePrefs)
	{
	prefs.imageSize=0; /* 0 default is full size*/
	};
//
dateOrder=prefs.dateOrder;
savePrefs=prefs.savePrefs;
imageSize=prefs.imageSize;