/**************************************************************************

	Javascript Cookies functions library.
	
	Boréalis Développement Inc. 
	www.borealisdev.qc.ca
	© Copyright 1997-2007 Stéphane Lebeau
	
***************************************************************************/

/**************************************************************************/
/* Write 																  																*/
/**************************************************************************/

function writeCookie(name, value)
{
	var argv=WriteCookie.arguments;
	var argc=WriteCookie.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" : "");
}


/**************************************************************************/
/* Read 																  																*/
/**************************************************************************/

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

function readCookie(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; 
}


/**************************************************************************/
/* Delete 															  																*/
/**************************************************************************/

function deleteCookie(name)
{
	date=new Date;
	date.setFullYear(date.getFullYear()-1);
	writeCookie(name, null, date); 
}