/**
* \file GenUtilities.js
*
* Bunch of generic utilities coalesced here.
*/
/**
* ChangeText - this is used in the article/directory lists to
* swap the text in the side window.
*/
function ChangeText(parentID, itemID)
{
var parentElement = document.getElementById(parentID);
if (parentElement)
{
var nodes = parentElement.getElementsByTagName('DIV');
var ix;
for (ix = 0; ix < nodes.length; ix++)
if (nodes[ix].id)
{
if (nodes[ix].id == itemID)
nodes[ix].style.display = 'block';
else
nodes[ix].style.display = 'none';
}
}
}
/**
* An issue with browsers - The popular browsers parent the
* and sections under an HTMLEntity object (underneath
* the document.) *That* object contains the scroll position.
*
* Other browsers still carry it in the body.
*
* So, we just take the max of the two, assuming the browser is only
* going to set one.
*
* Avoids having to check for user agents (and getting it wrong).
*/
function DocTop()
{
return (document.body.parentNode.scrollTop > document.body.scrollTop)?
document.body.parentNode.scrollTop : document.body.scrollTop;
}
function SetDocTop(val)
{
window.scroll(0, val);
}
function ShowPicOrSB(url)
{
if (url.match('TOPLOC'))
url = url.replace(/TOPLOC/, 'x' + DocTop());
window.location = url;
}
function ShowImageLinkChoice(tEvent, articleURL, galleryURL)
{
var picQueryDiv = document.getElementById('PicQueryDiv');
if (!picQueryDiv)
{
picQueryDiv = document.createElement('div');
picQueryDiv.className = 'navwindow';
picQueryDiv.id = 'PicQueryDiv';
picQueryDiv.style.fontFamily = 'arial,helvetica,sans-serif';
document.body.appendChild(picQueryDiv);
}
var divText =
'Take me to:
' +
'' +
'- ' +
((articleURL == '')? '(Image not in article)' :
'The ARTICLE') +
'
' +
'- The GALLERY
' +
'
' +
'...that contains this image
' +
'';
picQueryDiv.innerHTML = divText;
picQueryDiv.style.display = 'block';
PositionObject(picQueryDiv, tEvent);
}
//
// position the object to the event x and y.
// browser dependent.
//
function PositionObject(theObject, tEvent)
{
var x;
var y;
if (window.event)
{
x = event.clientX;
y = event.clientY + DocTop();
}
else
{
x = tEvent.pageX;
y = tEvent.pageY;
}
theObject.style.left = (x -
((x < theObject.offsetWidth + 50)? 0 : theObject.offsetWidth)) + 'px';
theObject.style.top = (y -
((y < theObject.offsetHeight + 50)? 0 : theObject.offsetHeight)) + 'px';
}
function ShowOrHideDescription(event,img)
{
descriptionDiv = document.getElementById('indexDescriptionID');
textspan = img.parentNode.getElementsByTagName('span');
if (img.src.match('plus.gif'))
{
img.src = '/images/minus.gif';
textspan[0].innerHTML = 'Hide description';
descriptionDiv.style.display = 'block';
}
else
{
img.src = '/images/plus.gif';
textspan[0].innerHTML = 'Show description';
descriptionDiv.style.display = 'none';
}
}
/*
function DebugOut(item, desc)
{
var p = document.createElement('p');
p.style.marginLeft = '330px';
p.innerHTML = item + ': ' + desc;
document.body.appendChild(p);
}
*/