bgcolor = getCookie("bgcolor");
if(!bgcolor){
    bgcolor = "white";
}
document.bgColor = bgcolor;

function setBgcolor(color){
    setCookie("bgcolor",color);
    document.bgColor = color;
}

function getCookie(key){
    tmp = document.cookie+";";
    tmp1 = tmp.indexOf(key,0);
    if(tmp1 != -1){
        tmp = tmp.substring(tmp1,tmp.length);
        start = tmp.indexOf("=",0);
        end = tmp.indexOf(";",start);
        return(unescape(tmp.substring(start+1,end)));
    }
    return("");
}