// AJB 1/11/2001, cookie.js
// (very) Simple cookie handling

// Example usage:
// var Xcookie = new obiCookie( "LimitArchive", 365 );
// ( First Param is cookie name, second is desired expirey time in days)
//
// 1. Read Cookie
// var theCookie = Xcookie.GetCookie();
// if ( null == theCookie )
//		// Cookie does not exist
// else
//		// the cookie value can be taken either
//		// from the return value or from the .cookieVal property
//		var x = theCookie;
//		var x = Xcookie.cookieVal;
//
// 2. Write Cookie (Expiry time as in object initialisation)
// Xcookie.SetCookie( "106" );
//
// 3. Delete Cookie
// Xcookie.KillCookie();
//

// My Type 'obiCookie'

// Constructor
function obiCookie( theCookieName, theExpireTimeInDays ){
	this.CookieName = theCookieName;
	this.cookieVal = null;
	this.expireTimeInMs = theExpireTimeInDays * 1000 * 60 * 60 * 24;
}

// Methods
obiCookie.prototype.GetCookie = function(){  
	// Look for our named cookie
	var i = document.cookie.indexOf( this.CookieName + "=" );
	if ( -1 != i ){
		var e = document.cookie.slice( i ).indexOf( ";" );
		this.cookieVal = document.cookie.slice( i+this.CookieName.length+1, (-1 != e)?e:document.cookie.length );
		return this.cookieVal;}
	return null;
}

obiCookie.prototype.SetCookie = function( Value ){
	var expireDate = new Date(); 
	expireDate.setTime( expireDate.getTime() + this.expireTimeInMs );

	var cookietext = this.CookieName + "=" + Value + 
		"; expires=" + expireDate.toGMTString();
	document.cookie = cookietext;
	this.cookieVal = Value; 
}

obiCookie.prototype.KillCookie = function(){
	var expireDate = new Date(); 
	document.cookie = this.CookieName + "=0" + 
		"; expires=" + expireDate.toGMTString();
	this.cookieVal = null; 
}

obiCookie.prototype.GetValue = function(){
	return this.cookieVal;
}