//
// Load image not included in html-source
//
function loadImageURL(imageURL) {
imageObj = new Image();
imageObj.src = imageURL;
}
//
// Replace image according to naming convention
// (imageURL = ... + '_' + state + '.' + extension)
//
function toggleImageURL (imageName, state) {
imageURL = document.images[imageName].src //[imageName]
extension = imageURL.substring(imageURL.lastIndexOf ('.'), imageURL.length)
if (imageURL.lastIndexOf ('_') == -1)
{imageURL = imageURL.substring(0, imageURL.lastIndexOf ('.'))}
else
{imageURL = imageURL.substring(0, imageURL.lastIndexOf ('_') )}
if (state != '') {state = '_' + state}
document.images[imageName].src = imageURL + state + extension
}
//
// Get alternate framesource form searchstring in url
// (URL = protocol//host:port/pathname#hash?search)
// *1*: window.location.search.toString() ... ends befor an included #hash-character
function frameSource (frameName, defaultSource) {
searchString = window.location.toString(); searchString = searchString.substring(searchString.indexOf('?')) /*1*/
if (searchString.substring (0,1) == '?') {
searchString = '&' + searchString.substring (1)
}
firstChar = searchString.indexOf('&' + frameName + '=')
if (firstChar != -1) {
firstChar += frameName.length + 2
lastChar = searchString.indexOf('&', firstChar)
if (lastChar != -1) {
result = searchString.substring (firstChar, lastChar)
} else {
result = searchString.substring (firstChar)
}
} else {
result = defaultSource
}
return result
}
function setImageURL(imageName, imageURL) {
if (document.images[imageName]) {
document.images[imageName].src = imageURL;
return true;
}
}
function navigatorResizeFix () {
if (navigator.appName == 'Netscape' &&
parseInt(navigator.appVersion) >= 4) {
window.location.reload()
}
}
/********************************************************************************
NOTES:
function loadImage:
(1) call with onload-event () to load after page finished loading.
(2) might not work with IE according to [1]
function navigatorResizeFix
(1) See also Adobe Golive Netscape CSS Fix-Action; [2a]
browser detection
NOTE:
This script does not overcome Netscape's Win95 registry-dependent userAgent model.
That is, if you've got 4.5 and 4.0x on the same computer, they will both report 4.5. [2]
------------------------
[1] "... Internet Explorer doesn't support the Image object ..."
How to pre-load images using JavaScript, plus...
Chuck Musciano, August 1997
http://www.netscapeworld.com/netscapeworld/nw-08-1997/nw-08-html.html
[2] Web Workshop
Stephan Nedregård
(a) http://www.micropop.com/workshop/css.html
(b) http://www.micropop.com/workshop/detection.html
********************************************************************************/