/**
* Javascript functions for the KTH website.
*
* $Source$
*
* $Revision$
*
* Last modified: $Date$
*
* by $Author$
*
* Copyright (C) 2006 Kungl Tekniska H?gskolan
* All rights reserved.
*/
/**
* Set this to false if you dont want debug
* info to be shown. Only works in Firefox.
*/
var DEBUG = false;
/**
*
* Method that is run when a page is loaded.
*/
function loadPage( ){
enterFunction( loadPage );
exitFunction( loadPage );
}
/**
*
* Method that is run when a page is unloaded.
*/
function unloadPage( ){
enterFunction( unloadPage );
debugCleanUp( );
exitFunction( unloadPage );
}
/**
*
* Redirect to the selected link in the form.
* Used in quickie.
*/
function redirectLinkSelect( form ){
enterFunction( redirectLinkSelect );
var link = getSelectedValue( form.linkSelect );
debug( "Link is: '" + link + "'" );
redirect( link );
exitFunction( redirectLinkSelect );
}
/**
*
* Redirect the current window to a url.
*/
function redirect( url ) {
debug( "Redirecting current window to: '" + url + "'." );
window.location.href = url;
}
/**
*
* Get the selected value from an html select box.
*/
function getSelectedValue( select ){
return select.options[ select.options.selectedIndex ].value;
}
/**
*
* In Cortina an external link is an complete URL.
*/
function isExternalLink( value ){
debug( "Value '" + value + "' is ExternalLink : " + isUrl( value ) );
return isUrl( value );
}
/**
*
* Is the passed value an URL, ie contains "http".
*/
function isUrl( value ) {
if ( value == null){
return false;
}
if( value.length < 5 ){
return false;
}
if( value.indexOf( "http" ) > -1 ){
return true;
}
return false;
}
/**
* Open a new window
*
*/
function openHelpWindow( url ){
var newWindow2 = window.open(url,'mywindow','resizable=yes,width=300,height=200,scrollbars=yes,status=no');
newWindow2.focus( );
}
/**
* Open a new window
*
*/
function openNewWindow( url ){
var newWindow = open( url );
}
/**
*
* Submits the education choice on the studentwebsite.
* Later to be used for selecting content in the navigation.
*
* NOTE! This method uses an form by the name "rs" (Rember Selection)
* that has to be present in the page to work.
*/
function submitEducationChoice( form ){
enterFunction( submitEducationChoice );
form.rs.value = ( document.rsForm.rs.checked ) ? 'true' : 'false';
exitFunction( submitEducationChoice );
return true;
}
function help( title, message, language ){
enterFunction( help );
var url = '/script/help-www.jsp?t=' + title + '&m=' + message + '&l='+ language;
debug( "URL: " + url );
openHelpWindow( url );
exitFunction( help );
}
/**
* Get element by id wrapping browser incompability.
* Overloads the document.getElementById
*/
function getElementById(id) {
if (!document.getElementById){
if (document.all) {
document.getElementById = function() {
if (typeof document.all[id] != "undefined") {
return document.all[id];
} else {
return null;
}
}
} else if (document.layers) {
document.getElementById = function(){
if (typeof document[id] != "undefined") {
return document[id];
} else {
return null;
}
}
}
}
return document.getElementById(id);
}
/**
* Gets the current browser.
*/
function getBrowser(){
return navigator.appName
}
/**
* Gets the browser version as int.
*/
function getBrowserVersion() {
var result = -1;
var version = navigator.appVersion;
if (version != null) {
result = parseInt(version);
}
return result;
}
/**
* Set up method for page load.
*/
function setup() {
enterFunction(setup);
if (isIE7()) {
columnHeights();
}
exitFunction(setup);
}
function toogle(id) {
var element = getElementById(id);
if (isDisplaying(element)) {
element.style.display = 'none';
} else {
element.style.display = 'block';
}
}
function isDisplaying(element){
if (element == null) {
return false;
}
if (element.style.display == null) {
return true;
}
if (element.style.display == "") {
return true;
}
if (element.style.display.toLowerCase() == 'block') {
return true;
}
return false;
}
/* -------------------------------------------------------------------- */
var SHADE_SPEED_MS = 60;
function hover(id) {
enterFunction(hover);
up(id, null, 4, null);
exitFunction(hover);
}
function up (id, hex, offset, index) {
enterFunction(up);
debug("id", id);
debug("hex", hex);
debug("offset", offset);
debug("index", index);
var element = getElementById(id);
var rgb = null;
if (hex == null) {
rgb = getBackgroundColor(id);
} else {
var hexadecimal = new Hexadecimal(hex);
rgb = hexadecimal.toRGB();
}
if (offset == null) {
offset = 10;
}
if (index == null) {
index = 0;
}
rgb.brighten();
element.style.background = rgb.toHexadecimal();
if (parseInt(offset) > parseInt(index)) {
debugValue("setTimeout method call", "up('" + id + "', '" + rgb.toHexadecimal() + "', " + offset + ", " + index++ + ")");
setTimeout("up('" + id + "', '" + rgb.toHexadecimal() + "', " + offset + ", " + index++ + ")", SHADE_SPEED_MS);
} else {
down(id, hex, offset, null);
}
debugValue("Background", element.style.background);
exitFunction(up);
}
function down (id, hex, offset, index) {
enterFunction(up);
infoValue("index", index);
debugValue("id", id);
debugValue("hex", hex);
debugValue("offset", offset);
debugValue("index", index);
var element = getElementById(id);
var rgb = null;
if (hex == null) {
rgb = getBackgroundColor(id);
} else {
var hexadecimal = new Hexadecimal(hex);
rgb = hexadecimal.toRGB();
}
if (offset == null) {
offset = 10;
}
if (index == null) {
index = 0;
}
rgb.darken();
element.style.background = rgb.toHexadecimal();
if (parseInt(offset) > parseInt(index)) {
debugValue("setTimeout method call", "up('" + id + "', '" + rgb.toHexadecimal() + "', " + offset + ", " + index++ + ")");
setTimeout("down('" + id + "', '" + rgb.toHexadecimal() + "', " + offset + ", " + index++ + ")", SHADE_SPEED_MS);
}
debugValue("Background", element.style.background);
exitFunction(up);
}
function getBackgroundColor(id) {
return new RGB(193,193,193);
}
/**
* STATIC STRING REPRESENTING HEX VALUES.
*/
var HEXADECIMALS = "0123456789ABCDEF";
/**
* Takes a hexadecimal rgb value like #c345a4.
* Case insensitive.
*/
function Hexadecimal(hexadecimal){
this.hexadecimal = hexadecimal;
this.toRGB = toRGB;
this.toString = toString;
this.getValue = getValue;
function toString() {
return this.hexadecimal;
}
function getValue() {
return this.hexadecimal;
}
function toRGB(){
enterFunction(toRGB);
var result = null;
var hexValue = this.hexadecimal;
if (hexValue.charAt(0) == "#") {
debug("Striping value of '#'.");
hexValue = hexValue.slice(1);
}
hexValue = hexValue.toUpperCase();
var rgb = new Array(3);
var index = 0;
var first, second;
for (var i = 0; i < 6; i += 2) {
first = HEXADECIMALS.indexOf(hexValue.charAt(i));
second = HEXADECIMALS.indexOf(hexValue.charAt(i+1));
rgb[index] = (first * 16) + second;
index++;
}
exitFunction(toRGB);
return new RGB(rgb[0], rgb[1], rgb[2]);
}
}
/**
* Takes three numeric rbg values. like "234, 12, 3".
*/
function RGB(red, green, blue) {
this.red = red;
this.green = green;
this.blue = blue;
this.toHexadecimal = toHexadecimal;
this.getRed = getRed;
this.getGreen = getGreen;
this.getBlue = getBlue;
this.brighten = brighten;
this.darken = darken;
this.toString = toString;
this.getValue = getValue;
function toString() {
return "rgb(" + this.getRed() + "," + this.getGreen() + "," + this.getBlue() + ")";
}
function getValue() {
return "rgb(" + this.getRed() + "," + this.getGreen() + "," + this.getBlue() + ")";
}
function toHexadecimal(){
enterFunction(toHexadecimal);
var result = "#";
result += getHexadecimalValue(this.red);
result += getHexadecimalValue(this.green);
result += getHexadecimalValue(this.blue);
exitFunction(toHexadecimal);
return result;
}
function getRed(){
return this.red;
}
function getGreen(){
return this.green;
}
function getBlue(){
return this.blue;
}
function getHexadecimalValue(color){
enterFunction(getHexadecimalValue);
debugValue("Color", color);
var first = color / 16;
var second = color % 16;
var result = HEXADECIMALS.charAt(first);
result += HEXADECIMALS.charAt(second);
debugValue("Hex", result);
exitFunction(getHexadecimalValue);
return result;
}
function brighten() {
this.red += 1;
this.green += 1;
this.blue += 1;
}
function darken() {
this.red -= 1;
this.green -= 1;
this.blue -= 1;
}
}
/* -------------------------------------------------------------------- */
//********************************************************************************************
//*********************************** DEBUG **************************************************
//********************************************************************************************
//********************************************************************************************
//************ To turn on debugging change var DEBUG_LEVEL at bottom of page *****************
//********************************************************************************************
//********************************************************************************************
/**
* Debug info to use when entering a function .
*/
function enterFunction( method ){
if( !isDebugMode( ) ){
return;
}
debug( "
DEBUG: Entering function: " + method.name + "
");
}
/**
* Debug info to use when entering a function .
*/
function exitFunction( method ){
if (!isDebugMode()) {
return;
}
debug( "
DEBUG: Exiting function: " + method.name + "
");
}
/**
* Simple debug method for FireFox.
*/
function debug(message){
if (isDebugMode()) {
var display = getDebugView( ).document;
display.write( "
DEBUG: " + message + "
" );
}
}
function info(message){
if (isInfoMode()) {
var display = getDebugView( ).document;
display.write( "
INFO: " + message + "
" );
}
}
function warning(message){
if (isWarningMode()) {
var display = getDebugView( ).document;
display.write( "
WARNING: " + message + "
" );
}
}
function fatal(message){
if (isWarningMode()) {
var display = getDebugView( ).document;
display.write( "
FATAL: " + message + "
" );
}
}
/**
* Simple debug method for FireFox.
*/
function debugValue(label, value){
if (isDebugMode()) {
var display = getDebugView( ).document;
display.write( "
DEBUG: " + label + " '" + value + "'
" );
}
}
function infoValue(label, value){
if (isInfoMode()) {
var display = getDebugView( ).document;
display.write( "
INFO: " + label + " '" + value + "'
" );
}
}
function warningValue(label, value){
if (isWarningMode()) {
var display = getDebugView( ).document;
display.write( "
WARNING: " + label + " '" + value + "'
" );
}
}
function fatalValue(label, value){
if (isFatalMode()) {
var display = getDebugView( ).document;
display.write( "
FATAL: " + label + " '" + value + "'
" );
}
}
/**
* Get the view to display debug messages in. Normally a window.
*/
var debugView;
function getDebugView( ){
if (debugView == null){
debugView = open( 'debug_window', window, 'resizable=yes,width=400,height=250,scrollbars=yes' );
}
return debugView;
}
function debugCleanUp( ){
if( debugView != null ){
getDebugView( ).close( );
debugView = null;
}
}
/**
*
* Is this javascript set in debug mode.
* Normally this is set in DEBUG varible.
*/
var NO_LOGGING = 100;
var DEBUG = 1;
var INFO = 2;
var WARNING = 3;
var FATAL = 4;
function isDebugMode( ){
return DEBUG >= DEBUG_LEVEL;
}
function isInfoMode( ){
return INFO >= DEBUG_LEVEL;
}
function isWarningMode( ){
return WARNING >= DEBUG_LEVEL;
}
function isFatalMode( ){
return FATAL >= DEBUG_LEVEL;
}
/**
* Set this to false if you dont want debug
* info to be shown. Only works in Firefox.
*/
var DEBUG_LEVEL = DEBUG_LEVEL;
/**
* SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
*
* SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
*
*/
if(typeof deconcept=="undefined"){var deconcept=new Object();}if(typeof deconcept.util=="undefined"){deconcept.util=new Object();}if(typeof deconcept.SWFObjectUtil=="undefined"){deconcept.SWFObjectUtil=new Object();}deconcept.SWFObject=function(_1,id,w,h,_5,c,_7,_8,_9,_a){if(!document.getElementById){return;}this.DETECT_KEY=_a?_a:"detectflash";this.skipDetect=deconcept.util.getRequestParameter(this.DETECT_KEY);this.params=new Object();this.variables=new Object();this.attributes=new Array();if(_1){this.setAttribute("swf",_1);}if(id){this.setAttribute("id",id);}if(w){this.setAttribute("width",w);}if(h){this.setAttribute("height",h);}if(_5){this.setAttribute("version",new deconcept.PlayerVersion(_5.toString().split(".")));}this.installedVer=deconcept.SWFObjectUtil.getPlayerVersion();if(!window.opera&&document.all&&this.installedVer.major>7){deconcept.SWFObject.doPrepUnload=true;}if(c){this.addParam("bgcolor",c);}var q=_7?_7:"high";this.addParam("quality",q);this.setAttribute("useExpressInstall",false);this.setAttribute("doExpressInstall",false);var _c=(_8)?_8:window.location;this.setAttribute("xiRedirectUrl",_c);this.setAttribute("redirectUrl","");if(_9){this.setAttribute("redirectUrl",_9);}};deconcept.SWFObject.prototype={useExpressInstall:function(_d){this.xiSWFPath=!_d?"expressinstall.swf":_d;this.setAttribute("useExpressInstall",true);},setAttribute:function(_e,_f){this.attributes[_e]=_f;},getAttribute:function(_10){return this.attributes[_10];},addParam:function(_11,_12){this.params[_11]=_12;},getParams:function(){return this.params;},addVariable:function(_13,_14){this.variables[_13]=_14;},getVariable:function(_15){return this.variables[_15];},getVariables:function(){return this.variables;},getVariablePairs:function(){var _16=new Array();var key;var _18=this.getVariables();for(key in _18){_16[_16.length]=key+"="+_18[key];}return _16;},getSWFHTML:function(){var _19="";if(navigator.plugins&&navigator.mimeTypes&&navigator.mimeTypes.length){if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","PlugIn");this.setAttribute("swf",this.xiSWFPath);}_19="