var assoctrac_id = 5406; //Assoctrac ID
var cookie_name = 'CC_2.0'; //Assoctrac cookie name
// Add the following line between the tags
//
// Add the following JavaScript between the tags
//
// Add the following JavaScript in the PayPal button area. This
// creates the 'custom' field, so if you have a custom field already
// remove it and use this one instead.
//
function at_cookie_value(param) {
var query_string = get_cookie(cookie_name);
if(query_string != null) {
return decode_query_string(decode_query_string(query_string,
'QUERY_STRING'), param);
} else {
if(param == 'a') return assoctrac_id;
}
return null;
}
function get_cookie(cookie_name) {
if (document.cookie.length > 0) {
//find the start of the cookie value
start = document.cookie.indexOf(cookie_name + '=');
if (start != -1) {
start += cookie_name.length + 1;
//find the end of the cookie value
end = document.cookie.indexOf(';', start);
if (end == -1) end = document.cookie.length;
return unescape(document.cookie.substring(start, end));
}
}
return null;
}
function decode_query_string(query_string, name) {
//figure out the delimiter between the environment variables
var delimiter = ';';
if(query_string.indexOf(';') == -1) delimiter = '&';
//split the query string
var environment = query_string.split(delimiter);
var parameters = new Array;
for(var parameter in environment) {
var segments = environment[parameter].split('=');
parameters[unescape(segments[0])] = unescape(segments[1]);
}
return parameters[name];
}