/*
It is designed for ENh-31(Discovery). It contains the javascript functions,
which are called on mouse double click on a article page.And displays the distionary content
for double clicked word with ajax technology.
*/
var isBrowser = new Is()
{
InstallEventHandlers();
}
var gDblClk = false;
function browserDetect() {
browserOk=false;
bAgt = navigator.userAgent.toLowerCase(); //determine what platform
bVer = parseInt(navigator.appVersion);
//determine what version of browser
if (bAgt.indexOf("mac") != -1 ) //determine if the user is on a Mac
{
browserOk = true;
}
return browserOk;
}
function InstallEventHandlers()
{
if (isBrowser.nav)
{
if(parseFloat(navigator.appVersion)>=5.0)
{
document.write("");
}
// Netscape Navigator.
else
{
window.captureEvents (Event.DBLCLICK | Event.MOUSEUP);
window.onDblClick = handleDoubleClick;
window.onMouseUp = handleMouseUp;
}
}
else if(browserDetect())
{
document.write("");
}
else
{
// Microsoft Internet Explorer.
document.ondblclick = handleDoubleClick;
document.nomouseup = handleMouseUp;
}
}
function ShowDblClickIcon()
{
document.writeln('
');
}
//This function is added so that only non -AOL users can see the "Tell Us" icon.
// The images in the tool box for articles and special reports are processed here.
function ShowSurveyImage(category,pf)
{
var p = pf;
if(category == "articles")
{
title= "acg_tbtitle.gif";
psear = "acb_tbpsear.gif";
tellus = "acb_tbtellus.gif";
bend = "acg_tbend.gif";
}
else if(category == "reports")
{
title = p+"cg_tbtitle.gif";
psear = p+"cb_tbpsear.gif";
tellus = p+"cb_tbtellus.gif";
bend = p+"cg_tbend.gif";
}
var tbHtml = '';
tbHtml = '\n'+
' | \n';
tbHtml += ' | \n';
if ((document.cookie.indexOf('acct=9901AOL') == -1))
{
tbHtml = tbHtml +
' | \n';
}
tbHtml = tbHtml +
' | \n
\n';
return tbHtml;
}
function handleDoubleClick(e)
{
gDblClk = true;
searchDict();
return true;
}
function handleMouseUp(e)
{
if (gDblClk)
searchDict();
return true;
}
function searchDict()
{
var term = getSelectedText();
if (!term || !term.length)
return;
popupDict(term);
}
function getSelectedText()
{
var sSelection = "";
if (window.getSelection)
{
sSelection = window.getSelection();
}
else if (document.selection &&
document.selection.createRange)
{
var range = document.selection.createRange();
if (range)
sSelection = range.text;
}
else if (window.getSelection)
{
sSelection = window.getSelection();
}
if (!sSelection)
return "";
// Truncate string at 30 characters
var iMaxLength = 30;
if (sSelection.length > iMaxLength)
{
sSelection = sSelection.substring(0, iMaxLength);
var iSpacePos = sSelection.lastIndexOf(' ');
if (iSpacePos > 0)
sSelection = sSelection.substring(0, iSpacePos);
}
sSelection = new String(sSelection);
// Remove Ctrl-M's that Netscape adds between lines.
sSelection=sSelection.replace(new RegExp('\\cM', 'g'), ' ');
// Remove non-space whitespace characters
sSelection=sSelection.replace(new RegExp('\\n', 'g'), '');
sSelection=sSelection.replace(new RegExp('\t', 'g'), '');
// Remove leading & trailing spaces
sSelection=sSelection.replace(new RegExp('^\\s+'), '');
sSelection=sSelection.replace(new RegExp('\\s+$'), '');
// Compress runs of spaces
sSelection = sSelection.replace(new RegExp('\\s+'),' ');
return sSelection;
}
// Pop up the dictionary window sized relative to the user's screen resolution.
function popupDict(initEntryId, width, height)
{
var minWidth = 320; var maxWidth = 660; var nomWidth = minWidth;
var minHeight = 240; var maxHeight = 418; var nomHeight = maxHeight;
var features = "menubar=yes,toolbar=yes,status=yes,resizable=yes,scrollbars=yes";
var dictOrgUrl = "/student/dictionary?";
var dictUrl = "/student/ardict?"; //to display the dictionary content in same page as popup. changed url from /dict to /ardict
var cmd = "sh";
var height="";
var width="";
// Set the nominal size of the popup based on the user's resolution.
if (window.screen)
{
maxWidth = window.screen.width;
maxHeight = window.screen.height -90;
//alert("maxWidth:"+maxWidth+"maxheight:"+maxHeight);
if (maxWidth==800)
{
if (document.all) maxHeight -= 26;
nomWidth = Math.round(maxWidth * .635);
nomHeight = maxHeight-64;
height=nomHeight;
width=nomWidth;
features += ",ScreenX=0,ScreenY=0,top=0,left=0";
features += ",height=" + height + ",width=" + width;
}
else
{
if (document.all) maxHeight -= 26;
nomWidth = Math.round(maxWidth * .508);
nomHeight = maxHeight - 232;
height=nomHeight;
width=nomWidth;
features += ",ScreenX=0,ScreenY=0,top=0,left=0";
features += ",height=" + height + ",width=" + width;
}
}
// Parse the size parameters.
// Parse the initial entry ID parameter.
if (initEntryId == null)
{
initEntryId = "di000000";
}
else if (initEntryId.length == 8 && initEntryId.substring(0, 2) == "di")
{
for (i = 2; i < 8; i++)
{
if ((ch = initEntryId.substring(i, 1)) < "0" || ch > "9")
{
cmd = "lu";
break;
}
}
}
else
{
cmd = "lu";
}
dictUrl += cmd + "=" + initEntryId;
dictOrgUrl += cmd + "=" + initEntryId;
//alert("dictUrl: "+dictUrl);
//alert("dictOrgUrl: "+dictOrgUrl);
var status = retrieveURL(dictUrl+(gDblClk ? '&cl=1':''));
//alert("am now here");
if(status == "false"){ //go to dctionary page
location.href = dictOrgUrl+(gDblClk ? '&cl=1':'');
}
}
// The following is taken from Netscape's site.
function Is ()
{ // convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase()
// *** BROWSER VERSION ***
this.major = parseInt(navigator.appVersion)
this.minor = parseFloat(navigator.appVersion)
this.nav = ((agt.indexOf('mozilla')!=-1) && ((agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1)))
this.nav2 = (this.nav && (this.major == 2))
this.nav3 = (this.nav && (this.major == 3))
this.nav4 = (this.nav && (this.major == 4))
this.navonly = (this.nav && (agt.indexOf(";nav") != -1))
this.ie = (agt.indexOf("msie") != -1)
this.ie3 = (this.ie && (this.major == 2))
this.ie4 = (this.ie && (this.major == 4))
this.opera = (agt.indexOf("opera") != -1)
// *** JAVASCRIPT VERSION CHECK ***
if (this.nav2 || this.ie3) this.js = 1.0
else if (this.nav3 || this.opera) this.js = 1.1
else if (this.nav4 || this.ie4) this.js = 1.2
// NOTE: In the future, update this code when newer versions of JS
// are released. For now, we try to provide some upward compatibility
// so that future versions of Nav and IE will show they are at
// *least* JS 1.2 capable. Always check for JS version compatibility
// with > or >=.
else if ((this.nav && (this.minor > 4.05)) || (this.ie && (this.major > 4)))
this.js = 1.2
else this.js = 0.0 // HACK: always check for JS version with > or >=
// *** PLATFORM ***
this.win = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) )
// NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
// Win32, so you can't distinguish between Win95 and WinNT.
this.win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1))
// is this a 16 bit compiled version?
this.win16 = ((agt.indexOf("win16")!=-1)
|| (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1)
|| (agt.indexOf("windows 16-bit")!=-1) )
this.win31 = (agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1)
// NOTE: Reliable detection of Win98 may not be possible. It appears that:
// - On Nav 4.x and before you'll get plain "Windows" in userAgent.
// - On Mercury client, the 32-bit version will return "Win98", but
// the 16-bit version running on Win98 will still return "Win95".
this.win98 = ((agt.indexOf("win98")!=-1)||(agt.indexOf("windows 98")!=-1))
this.winnt = ((agt.indexOf("winnt")!=-1)||(agt.indexOf("windows nt")!=-1))
this.win32 = this.win95 || this.winnt || this.win98 ||
((this.major >= 4) && (navigator.platform == "Win32")) ||
(agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1)
this.os2 = (agt.indexOf("os/2")!=-1)
|| (navigator.appVersion.indexOf("OS/2")!=-1)
|| (agt.indexOf("ibm-webexplorer")!=-1)
this.mac = (agt.indexOf("mac")!=-1)
this.mac68k = this.mac && ((agt.indexOf("68k")!=-1) ||
(agt.indexOf("68000")!=-1))
this.macppc = this.mac && ((agt.indexOf("ppc")!=-1) ||
(agt.indexOf("powerpc")!=-1))
this.sun = (agt.indexOf("sunos")!=-1)
this.sun4 = (agt.indexOf("sunos 4")!=-1)
this.sun5 = (agt.indexOf("sunos 5")!=-1)
this.suni86= this.sun && (agt.indexOf("i86")!=-1)
this.irix = (agt.indexOf("irix") !=-1) // SGI
this.irix5 = (agt.indexOf("irix 5") !=-1)
this.irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1))
this.hpux = (agt.indexOf("hp-ux")!=-1)
this.hpux9 = this.hpux && (agt.indexOf("09.")!=-1)
this.hpux10= this.hpux && (agt.indexOf("10.")!=-1)
this.aix = (agt.indexOf("aix") !=-1) // IBM
this.aix1 = (agt.indexOf("aix 1") !=-1)
this.aix2 = (agt.indexOf("aix 2") !=-1)
this.aix3 = (agt.indexOf("aix 3") !=-1)
this.aix4 = (agt.indexOf("aix 4") !=-1)
this.linux = (agt.indexOf("inux")!=-1)
this.sco = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1)
this.unixware = (agt.indexOf("unix_system_v")!=-1)
this.mpras = (agt.indexOf("ncr")!=-1)
this.reliant = (agt.indexOf("reliantunix")!=-1)
this.dec = (agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1)
|| (agt.indexOf("dec_alpha")!=-1) || (agt.indexOf("alphaserver")!=-1)
|| (agt.indexOf("ultrix")!=-1) || (agt.indexOf("alphastation")!=-1)
this.sinix = (agt.indexOf("sinix")!=-1)
this.freebsd = (agt.indexOf("freebsd")!=-1)
this.bsd = (agt.indexOf("bsd")!=-1)
this.unix = (agt.indexOf("x11")!=-1) || this.sun || this.irix || this.hpux ||
this.sco ||this.unixware || this.mpras || this.reliant ||
this.dec || this.sinix || this.aix || this.linux || this.freebsd
this.vms = (agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1)
}
function showPopup()
{
rt=sMasterEntryId.substring(2,3)
var url = '/wb/content/'+edition+ '/di/co/'+ rt+ '/'+ sMasterEntryId + '.htm';
openAWindow(0,url);
}
function showEntry(sEntryRit, sBookmark)
{
if (sEntryRit)
{
if((sEntryRit.charAt(sEntryRit.length - 1)) == '.')
{
sEntryRit = sEntryRit.substring(0,sEntryRit.length-1);
if(sEntryRit.indexOf('.') > -1)sEntryRit += '.';
}
//changed for tesing
location.href = "/student/dictionary?lu=" + sEntryRit + (sBookmark ? ("#" + sBookmark) : '');
}
}
//Ajax releted functions
var req; //global variable to store request object.
/**
* Get the contents of the URL via an Ajax call
* url - to get content from (e.g. /wb/ardict?lu={selected text}&cl=3 )
* nodeToOverWrite - when callback is made
* nameOfFormToPost - which form values will be posted up to the server as part
* of the request (can be null)
*/
function retrieveURL(pURL) {
//get the (form based) params to push up as part of the get request
dictURL=pURL;
//Do the Ajax call
//alert("check xmlHTTP object: "+ window.XMLHttpRequest);
if(window.XMLHttpRequest) { // Non-IE browsers
req = new XMLHttpRequest();
req.onreadystatechange = processStateChange;
try {
req.open("GET", dictURL, true); //was get
} catch (e) {
alert("Problem Communicating with Server\n"+e);
}
req.send(null); //Because mozilla browser expects an argument.
return "true";
} else if(window.ActiveXObject) { // IE
req = new ActiveXObject("Microsoft.XMLHTTP");
if (req) {
req.onreadystatechange = processStateChange;
req.open("GET", dictURL, true);
req.send();
}
return "true";
}else{
return "false";
}
}
/*
* Set as the callback method for when XmlHttpRequest State Changes
* used by retrieveUrl
*/
function processStateChange() {
if (req.readyState == 4) { // Complete
if (req.status == 200) { // OK response
var divName = document.getElementById('dictionaryOverLay');
divName.style.display = 'block';
//var closeButton = '';
var closeButton = '![\"Close](\"images/btn_quizClose.gif\")
';
document.getElementById("dictvalue").innerHTML=closeButton+req.responseText;
document.selection.empty();
//var divImageName = document.getElementById('imageadded');
//divImageName.style.display = 'none';
}
}
}