// CollapseMenu Object
// a slick collapsable navigation menu object
// 19990606

// Copyright (C) 1999 Dan Steinman
// Distributed under the terms of the GNU Library General Public License
// Available at http://www.dansteinman.com/dynapi/

bulletImg = new Image();
bulletImg.src = 'images/dot-blue.gif';
bulletImgActive = new Image();
bulletImgActive.src = 'images/dot-green.gif';
grayDot = new Image();
grayDot.src = '/i/d-g.gif';
var currSI = 'main';
function switchBigBG(evt) {
var currElement = (document.all)? event.srcElement : evt.target;
if (currElement.id != currSI) {
document.getElementById(currSI).setAttribute('src', document.getElementById(currSI).getAttribute('defpic'));
document.getElementById(currSI).style.cursor = (document.all)? 'hand' : 'pointer';
document.getElementById(currSI).onclick = switchBigBG;
currElement.setAttribute('src', grayDot.src);
currElement.style.cursor = 'default';
currElement.onclick = null;
currSI = currElement.id;
document.getElementById('bigBGPlaceholder').style.backgroundImage = 'url(./img/bg-' + currSI + '.jpg)';
}
}