// adds function to onload event without removing old events - checks for existance first
if (typeof addLoadEvent != 'function') {
	addLoadEvent = function (func) {
		var oldOnload = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				oldOnload();
				func();
			}
		}
	}
}

// saves document.getElementById() function to getId() shorthand - checks for existance first
if (typeof getId != 'function') getId = function(value) {	return document.getElementById(value) }

/* ---------- font size ---------- */
function txtSize(value) {
	document.body.style.fontSize = value + "%";
	getSend("txtSize.asp?txtSize=" + value, null)
}
function setup() {
	if (getId('txtSmall')) getId('txtSmall').href="javascript:void(txtSize('80'))";
	if (getId('txtNormal')) getId('txtNormal').href="javascript:void(txtSize('100'))";
	if (getId('txtBig')) getId('txtBig').href="javascript:void(txtSize('120'))";
}
addLoadEvent (setup); 

/* ---



 ---------- ajax script ---------- */

// Created by Jonathan Allen
// file created:	05-06-2007
// last updated:	07-06-2007
// v1.2.1

// EXAMPLE OF USE:
// <script type="text/javascript" src="ajax.js"></script>
// <div id="container"></div>
// <a href="javascript:getSend('getUser.php?usrId=2','container')">get user information</a>

// ----- ajax request -----
var subElem = null;																																				// set blank id for subject element
function getSend(url, target) {
	if (http.readyState == 0 || http.readyState == 4) {												// check availability
		subElem = document.getElementById(target);															// save target Id
		http.open("GET", url, true);																													// send request - method (get) - URL of ducument - true for asynchronous
		if (target != null) http.onreadystatechange = getResponse;						// get returned information if needed
		http.send(null);																																					// for post only - null as using get method
	} else setTimeout("getSend('"+url+"', '"+ target+"')", 10);							// wait and recall if not currently available
}

// ----- retrieve file -----
function getResponse() {
	if (http.readyState == 4) {																													// check for ready state
		subElem.style.backgroundImage = "none";																	// remove loading image
		subElem.innerHTML = http.responseText; 																		// save response to subject
	}
}

// ----- send request -----
function getHTTPObject() {
   var httpObject = null;																																	// set blank object variable
   if (window.XMLHttpRequest) httpObject = new XMLHttpRequest();	// check XMLHttpRequest object is available 
   else httpObject = new ActiveXObject("Microsoft.XMLHTTP");					// use ActiveX instead (how do you format again? :D)
	if (httpObject != null) { return httpObject; }																	// returns object if aiablable
  else {																																												//	if nothing available (truely boned)
		alert ("I'm sorry, but your browser does not support Ajax!");					// let them know their browser sucks
		return false;																																							// return false as nothing available
	}
}
var http = getHTTPObject();																														// sets http object for ajax use

// ----- SearchCheck -----
function searchCheck(){
	var textbox = getId('SubMenu_TextBox').value;
	if(textbox == 'Search Site'){
		getId('SubMenu_TextBox').value = '';
	}
}

// ----- Generic Menu Pop-Out -----
function menuPanelShow(id) {
		getId('MenuPopUp').style.display = 'block';
		getSend('/ajax-javascript/ajaxMenuPanel.asp?id='+id, 'MenuPopUp');
}
function menuPanelHide(id) { getId ('MenuPopUp').style.display = 'none'; }