/*  This module was taken from the Sarissa project and modified
 *  and added to by Samm to become a standard utility module.
*/

/*
 * Cross-browser event handling, by Scott Andrew
 */
function addEvent(element, eventType, lamdaFunction, useCapture) {
    if (element.addEventListener) {
        element.addEventListener(eventType, lamdaFunction, useCapture);
        return true;
    } else if (element.attachEvent) {
        var r = element.attachEvent('on' + eventType, lamdaFunction);
        return r;
    } else {
        return false;
    }
}

/*
 * Kills an event's propagation and default action
 */
function knackerEvent(eventObject) {
    if (eventObject && eventObject.stopPropagation) {
        eventObject.stopPropagation();
    }
    if (window.event && window.event.cancelBubble ) {
        window.event.cancelBubble = true;
    }

    if (eventObject && eventObject.preventDefault) {
        eventObject.preventDefault();
    }
    if (window.event) {
        window.event.returnValue = false;
    }
}

/*
 * Safari doesn't support canceling events in the standard way, so we must
 * hard-code a return of false for it to work.
 */
function cancelEventSafari() {
    return false;
}

/*
 * Cross-browser style extraction, from the JavaScript & DHTML Cookbook
 * <http://www.oreillynet.com/pub/a/javascript/excerpt/JSDHTMLCkbk_chap5/index5.html>
 */
function getElementStyle(elementID, CssStyleProperty) {
    var element = document.getElementById(elementID);
    if (element.currentStyle) {
        return element.currentStyle[toCamelCase(CssStyleProperty)];
    } else if (window.getComputedStyle) {
        var compStyle = window.getComputedStyle(element, '');
        return compStyle.getPropertyValue(CssStyleProperty);
    } else {
        return '';
    }
}

/*
 * CamelCases CSS property names. Useful in conjunction with 'getElementStyle()'
 * From <http://dhtmlkitchen.com/learn/js/setstyle/index4.jsp>
 */
function toCamelCase(CssProperty) {
    var stringArray = CssProperty.toLowerCase().split('-');
    if (stringArray.length == 1) {
        return stringArray[0];
    }
    var ret = (CssProperty.indexOf("-") == 0)
              ? stringArray[0].charAt(0).toUpperCase() + stringArray[0].substring(1)
              : stringArray[0];
    for (var i = 1; i < stringArray.length; i++) {
        var s = stringArray[i];
        ret += s.charAt(0).toUpperCase() + s.substring(1);
    }
    return ret;
}

/*
 * Disables all 'test' links, that point to the href '#', by Ross Shannon
 */
function disableTestLinks() {
  var pageLinks = document.getElementsByTagName('a');
  for (var i=0; i<pageLinks.length; i++) {
    if (pageLinks[i].href.match(/[^#]#$/)) {
      addEvent(pageLinks[i], 'click', knackerEvent, false);
    }
  }
}

/*
 * Cookie functions
 */
function createCookie(name, value, days) {
    var expires = '';
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days*24*60*60*1000));
        var expires = '; expires=' + date.toGMTString();
    }
    document.cookie = name + '=' + value + expires + '; path=/';
}

function readCookie(name) {
    var cookieCrumbs = document.cookie.split(';');
    var nameToFind = name + '=';
    for (var i = 0; i < cookieCrumbs.length; i++) {
        var crumb = cookieCrumbs[i];
        while (crumb.charAt(0) == ' ') {
            crumb = crumb.substring(1, crumb.length); /* delete spaces */
        }
        if (crumb.indexOf(nameToFind) == 0) {
            return crumb.substring(nameToFind.length, crumb.length);
        }
    }
    return null;
}

function eraseCookie(name) {
    createCookie(name, '', -1);
}

/*
 *  Functions added (swiped?) by Samm
 */
/*
function loadjscssfile(filename, filetype){
    if (filetype=="js"){ //if filename is a external JavaScript file
      var fileref=document.createElement('script')
      fileref.setAttribute("type","text/javascript")
      fileref.setAttribute("src", filename)
    }
    else if (filetype=="css"){ //if filename is an external CSS file
      var fileref=document.createElement("link")
      fileref.setAttribute("rel", "stylesheet")
      fileref.setAttribute("type", "text/css")
      fileref.setAttribute("href", filename)
    }
    if (typeof fileref!="undefined")
    document.getElementsByTagName("head")[0].appendChild(fileref)
// Examples:
// loadjscssfile("myscript.js", "js")     //dynamically load and add this .js file
// loadjscssfile("javascript.php", "js")  //dynamically load "javascript.php" as a JavaScript file
// loadjscssfile("mystyle.css", "css")    ////dynamically load and add this .css file
}
*/

/***********************************************
* Dynamic Ajax Content- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/
// From: http://www.dynamicdrive.com/dynamicindex17/ajaxcontent.htm
var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
var bustcacheparameter=""

function ajaxpage(url, containerid) {
    var page_request = false;
    if (window.XMLHttpRequest)      // if Mozilla, Safari etc
        page_request = new XMLHttpRequest()
    else if (window.ActiveXObject) {// if IE
        try {
            page_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try{
                page_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }
    else
        return false;
    page_request.onreadystatechange=function() {
        loadpage(page_request, containerid);
    }
    if (bustcachevar) //if bust caching of external page
        bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
    page_request.open('GET', url+bustcacheparameter, true)
    page_request.send(null)
}

function loadpage(page_request, containerid) {
    if (page_request.readyState == 4
    && (page_request.status==200 || window.location.href.indexOf("http")==-1))
        document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs() {
    // loadobjs('external.css') //load one CSS file
    // loadobjs('external.css', 'external2.css', 'feature.js') //load 2 CSS files & 1 JS file
    if (!document.getElementById)
        return
    for (i=0; i<arguments.length; i++) {
        var file=arguments[i]
        var fileref=""
        //Check to see if this object has not already been added to page before proceeding
        if (loadedobjects.indexOf(file)==-1) {
            if (file.indexOf(".js")!=-1) {        //If object is a js file
                fileref=document.createElement('script')
                fileref.setAttribute("type","text/javascript");
                fileref.setAttribute("src", file);
            }
            else if (file.indexOf(".css")!=-1) {  //If object is a css file
                fileref=document.createElement("link")
                fileref.setAttribute("rel", "stylesheet");
                fileref.setAttribute("type", "text/css");
                fileref.setAttribute("href", file);
            }
        }
        if (fileref!="") {
            document.getElementsByTagName("head").item(0).appendChild(fileref)
            loadedobjects+=file+" " //Remember this object as being already added to page
        }
    }
}
// *********************************************************************************

//document.write('<div id="loading"><br><br>Please wait...</div>');
//addEvent(window,"load",function() {document.getElementById("loading").style.display="none";})

/*
// Created by: Simon Willison | http://simon.incutio.com/
function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
        func();
      }
    }
}

addLoadEvent(function() {
  document.getElementById("loading").style.display="none";
});
*/