function rememberUsername(r,u) {
    if (document.getElementById(r)!=null){
        if (document.getElementById(r).checked) {
            createCookie('AMCHSD', document.getElementById(u).value, 30);            
        }
        else {
            eraseCookie('AMCHSD');
        }
    }    
}

function setUsername(r,u) {
    var username = readCookie('AMCHSD');
    if (username) {
        if (document.getElementById(u)!=null)
            document.getElementById(u).value=username;
        if (document.getElementById(r)!=null)
            document.getElementById(r).checked=true;
    }
}

function createCookie(name,value,days) {
    if (days) {
        var date = new Date(); 
        date.setTime(date.getTime()+(days*24*60*60*1000)); 
        var expires = "; expires="+date.toGMTString(); 
    } 
    else var expires = ""; 
    document.cookie = name+"="+value+expires+"; path=/"; 
}

function readCookie(name) { 
    var nameEQ = name + "="; 
    var ca = document.cookie.split(';'); 
    for(var i=0;i < ca.length;i++) { 
        var c = ca[i]; 
        while (c.charAt(0)==' ') 
            c = c.substring(1,c.length); 
        if (c.indexOf(nameEQ) == 0) 
            return c.substring(nameEQ.length,c.length); 
    } 
    return null; 
}

function eraseCookie(name) { 
    createCookie(name,"",-1);
}