// Global variables.
domain = '';
path = '/';
secure = 0;
// Function to save a field.
function save_field(obj) {
var cookie_value = '';
var objType = new String(obj.type);
switch(objType.toLowerCase()) {
case "checkbox" :
if (obj.checked) cookie_value = obj.name + '=[1]'
else cookie_value = obj.name + '=[0]'
break;
case "undefined" :
// a.k.a. radio field.
for (var i = 0; i < obj.length; i++) {
if (obj[i].checked) cookie_value = obj[i].name + '=[' + i + ']'
}
break;
case "select-one" :
cookie_value = obj.name + '=[' + obj.selectedIndex + ']';
break;
case "select-multiple" :
cookie_value = obj.name + '=[';
for (var i = 0; i < obj.options.length; i++) {
if (obj.options[i].selected) cookie_value += '+' + i
}
cookie_value += ']';
break;
default :
// We assume all other fields will have
// a valid obj.name and obj.value
cookie_value = obj.name + '=[' + obj.value + ']';
}
if (cookie_value) {
var expires = new Date();
expires.setYear(expires.getYear() + 1);
document.cookie = cookie_value +
((domain.length > 0) ? ';domain=' + domain : '') +
((path) ? ';path=' + path : '') +
((secure) ? ';secure' : '') +
';expires=' + expires.toGMTString();
}
return 1;
}

// Function to retrieve a field.
function retrieve_field(obj) {
var cookie = '', real_value = '';
cookie = document.cookie;
var objType = new String(obj.type);
if (obj.name)
var objName = new String(obj.name);
else
var objName = new String(obj[0].name);
var offset_start = cookie.indexOf(objName + '=[');
if (offset_start == -1) return 1;
var offset_start_length = objName.length + 2;
offset_start = offset_start + offset_start_length;
var offset_end = cookie.indexOf(']', offset_start);
real_value = cookie.substring(offset_start, offset_end);
switch(objType.toLowerCase()) {
case "checkbox" :
if (real_value == '1') obj.checked = 1
else obj.checked = 0
break;
case "undefined" :
obj[real_value].checked = 1;
break;
case "select-one" :
obj.selectedIndex = real_value;
break;
case "select-multiple" :
for (var i = 0; i < obj.options.length; i++) {
if ((real_value.indexOf('+' + i)) > -1)
obj.options[i].selected = 1;
else
obj.options[i].selected = 0;
}
break;
default :
obj.value = real_value;
break;
}
return 1;
}