/********************************************************
* File : Logging.js
* Author : Greg Jones greg_t_jones@hotmail.com
* - This file contains logic to add logging to your javascript methods
* version 0.1
* Usage : log."level"(msg) ex. log.debug("value of p is " + p);
* levels : instruction,info,debug,error
* logging can be turned on/off by setting enableTracing() to true/false
* further examples ...see schedule/schedule_common.jsp
*********************************************************/
//Toggle these values to turn on/off various levels of debugging
var _DEBUG= getCookie("_DEBUG") == true || getCookie("_DEBUG") == "true" ? true : false;
var _INFO= getCookie("_INFO") == true || getCookie("_INFO") == "true" ? true : false;
var _INSTRUCTION= getCookie("_INSTRUCTION") == true || getCookie("_INSTRUCTION") == "true" ? true : false;var _ERROR= getCookie("_ERROR") == true || getCookie("_ERROR") == "true" ? true : false;
var _ERROR= getCookie("_ERROR") == true || getCookie("_ERROR") == "true" ? true : false;
var _TESTING=false;
var _popup = false;
//Don't touch this
var _scheduleForm = "schedule";
var winHandle = null;
<!----
/*
name - name of the cookie
value - value of the cookie
[expires] - expiration date of the cookie
(defaults to end of current session)
[path] - path for which the cookie is valid
(defaults to path of calling document)
[domain] - domain for which the cookie is valid
(defaults to domain of calling document)
[secure] - Boolean value indicating if the cookie transmission requires
a secure transmission
* an argument defaults when it is assigned null as a placeholder
* a null placeholder is not required for trailing omitted arguments
*/
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
document.cookie = curCookie;
}
/*
name - name of the cookie
[path] - path of the cookie (must be same as path used to create cookie)
[domain] - domain of the cookie (must be same as domain used to
create cookie)
path and domain default if assigned null or omitted if no explicit
argument proceeds
*/
function deleteCookie(name, path, domain) {
if (getCookie(name)) {
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT";
}
}
/*
name - name of the desired cookie
return string containing value of specified cookie or null
if cookie does not exist
*/
function getCookie(name) {
var dc = document.cookie;
var prefix = name + "=";
var begin = dc.indexOf("; " + prefix);
if (begin == -1) {
begin = dc.indexOf(prefix);
if (begin != 0) return null;
} else
begin += 2;
var end = document.cookie.indexOf(";", begin);
if (end == -1)
end = dc.length;
return (dc.substring(begin + prefix.length, end));
}
function enableTracing(_testing)
{
if(!_DEBUG && !_INFO && !_INSTRUCTION && !_ERROR && _testing&&confirm("Turn on Tracing for this Request?"))
{
_DEBUG = true;
_INFO = true;
_INSTRUCTION=true;
_ERROR = true;
setCookie("_DEBUG",_DEBUG);
setCookie("_INFO",_INFO);
setCookie("_INSTRUCTION",_INSTRUCTION);
} 
}
//-->
//Instantiate Logger
function _Logger(id)
{
this.id = id;
this.txt ="\nnote: (Turn off further tracing for this log level by choosing 'Cancel')";
if(_popup)
winHandle = winHandle == null? window.open("debug.jsp") : winHandle;
this.debug = function(msg)
{
if(!_popup)
{
_DEBUG = _DEBUG&&confirm(id + ":[debug]\n " + msg + this.txt);
setCookie("_DEBUG",_DEBUG);
}
else {
_DEBUG&&winHandle.document.write(id + ":<font color='orange'>[debug]</font>" + msg + this.txt + "<p>\n");
}
}
this.info = function(msg)
{
if(!_popup)
{
_INFO = _INFO&&confirm(id + ":[info]\n " + msg + this.txt);
setCookie("_INFO",_INFO);
} else {
_INFO&&winHandle.document.write(id + ":<font color='blue'>[info]</font>\n " + msg + this.txt + "<p>\n");
}
}
this.instruction = function(msg)
{	
if(!_popup)
{
_INSTRUCTION = _INSTRUCTION&&confirm(id + ":[instruction]\n " + msg + this.txt);
setCookie("_INSTRUCTION",_INSTRUCTION);
} else {
_INSTRUCTION&&winHandle.document.write(id + ":<font color='green'>[instruction]</font>\n " + msg + this.txt + "<p>\n");
}
}
this.error = function(msg)
{	
if(!_popup)
{
_ERROR = _ERROR&&confirm(id + ":[error]\n " + msg + this.txt);
setCookie("_ERROR",_ERROR);
} else {
_ERROR&&winHandle.document.write(id + ":<font color='red'>[error]</font>\n " + msg + this.txt + "<p></font>\n");
}
}
return(this);
}