function getCookie(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;
}
function setCookie(name,value,expires,path,domain,secure){
	document.cookie=name+"="+escape(value)+
		((expires)?";expires="+expires.toGMTString():"")+
		((path)?";path="+path:"")+
		((domain)?";domain="+domain:"")+
		((secure)?";secure":"");
}
function deleteCookie(name,path,domain){
	if(getCookie(name)){
		document.cookie=name+"="+
			((path)?";path="+path:"")+
			((domain)?";domain="+domain:"")+
			";expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
function getCookieVal(offset){
	var endstr=document.cookie.indexOf(";",offset);
	if(endstr==-1) endstr=document.cookie.length;
	return unescape(document.cookie.substring(offset,endstr));
}
function fixCookieDate(date){
	var base=new Date(0);
	var skew=base.getTime();
	if(skew>0) date.setTime(date.getTime()-skew);
}