function Get_Cookie(name) {
    var start = document.cookie.indexOf(name+"=");
    var len = start+name.length+1;
    if ((!start) && (name != document.cookie.substring(0,name.length))) return null;
    if (start == -1) return null;
    var end = document.cookie.indexOf(";",len);
    if (end == -1) end = document.cookie.length;
    return unescape(document.cookie.substring(len,end));
}
 
function Set_Cookie(name,value,expires,path,domain,secure) {
    document.cookie = name + "=" +escape(value) +
        ( (expires) ? ";expires=" + expires.toGMTString() : "") +
        ( (path) ? ";path=" + path : "") + 
        ( (domain) ? ";domain=" + domain : "") +
        ( (secure) ? ";secure" : "");
}
 
var today = new Date();
var expires = new Date(today.getTime() + (56 * 86400000));
 
function set(form) {
  	if (form.rpass.checked) {
		Set_Cookie("user",form.myusername.value,expires); 
    	Set_Cookie("pass",form.mypassword.value,expires);
	} 
}

function get(form) {
	if ( form.myusername.value == Get_Cookie("user")) {
		form.mypassword.value = Get_Cookie("pass"); 
		} else {
			form.mypassword.value = "";}
}