function getStyleObject(objectId) {
if(document.getElementById && document.getElementById(objectId)) {
return document.getElementById(objectId).style;
}
else if (document.all && document.all(objectId)) {
return document.all(objectId).style;
} 
else if (document.layers && document.layers[objectId]) {
return document.layers[objectId];
} 
else {
return false;
}
}
function changeObjectVisibility(objectId, newVisibility) {
var styleObject = getStyleObject(objectId);
if(styleObject) {
styleObject.visibility = newVisibility;
return true;
} 
else {
return false;
}
}
function showPopup (targetObjectId, eventObj) {
if(eventObj) {
hideCurrentPopup();
eventObj.cancelBubble = true;
if( changeObjectVisibility(targetObjectId, 'visible') ) {
window.currentlyVisiblePopup = targetObjectId;
return true;
} 
else {
return false;
}
} 
else {
return false;
}
} 
function hideCurrentPopup() {
if(window.currentlyVisiblePopup) {
changeObjectVisibility(window.currentlyVisiblePopup, 'hidden');
window.currentlyVisiblePopup = false;
}
} 
window.onload = initializeHacks;
document.onclick = hideCurrentPopup;
function initializeHacks() {
if ((navigator.appVersion.indexOf('MSIE 5') != -1) && (navigator.platform.indexOf('Mac') != -1)&& getStyleObject('blankDiv')) {
window.onresize = explorerMacResizeFix;
}
resizeBlankDiv();
createFakeEventObj();
}
function createFakeEventObj() {
if (!window.event) {
window.event = false;
}
}
function resizeBlankDiv() {
if ((navigator.appVersion.indexOf('MSIE 5') != -1) && (navigator.platform.indexOf('Mac') != -1)&& getStyleObject('blankDiv')) {
getStyleObject('blankDiv').width = document.body.clientWidth - 20;
getStyleObject('blankDiv').height = document.body.clientHeight - 20;
}
}
function explorerMacResizeFix () {
location.reload(false);
}

//*****************************************************************************
// Copyright 2001 by Mike Hall.
// See http://www.brainjar.com for terms of use.
//*****************************************************************************

function Browser() {
var ua, s, i;
this.isIE    = false;
this.isNS    = false;
this.version = null;
ua = navigator.userAgent;
s = "MSIE";
if ((i = ua.indexOf(s)) >= 0) {
this.isIE = true;
this.version = parseFloat(ua.substr(i + s.length));
return;
}
s = "Netscape6/";
if ((i = ua.indexOf(s)) >= 0) {
this.isNS = true;
this.version = parseFloat(ua.substr(i + s.length));
return;
}
s = "Gecko";
if ((i = ua.indexOf(s)) >= 0) {
this.isNS = true;
this.version = 6.1;
return;
}
}

var browser = new Browser();
var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {
var el;
var x, y;
if (id)
dragObj.elNode = document.getElementById(id);
else {
if (browser.isIE)
dragObj.elNode = window.event.srcElement;
if (browser.isNS)
dragObj.elNode = event.target;
if (dragObj.elNode.nodeType == 3)
dragObj.elNode = dragObj.elNode.parentNode;
}
if (browser.isIE) {
x = window.event.clientX + document.documentElement.scrollLeft
+ document.body.scrollLeft;
y = window.event.clientY + document.documentElement.scrollTop
+ document.body.scrollTop;
}
if (browser.isNS) {
x = event.clientX + window.scrollX;
y = event.clientY + window.scrollY;
}
dragObj.cursorStartX = x;
dragObj.cursorStartY = y;
dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 0);
dragObj.elStartTop  = parseInt(dragObj.elNode.style.top, 0);
if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
if (isNaN(dragObj.elStartTop))  dragObj.elStartTop = 0;
dragObj.elNode.style.zIndex = ++dragObj.zIndex;
if (browser.isIE) {
document.attachEvent("onmousemove", dragGo);
document.attachEvent("onmouseup", dragStop);
window.event.cancelBubble = true;
window.event.returnValue = false;
}
if (browser.isNS) {
document.addEventListener("mousemove", dragGo,   true);
document.addEventListener("mouseup", dragStop, true);
event.preventDefault();
}
}

function dragGo(event) {
var x, y;
if (browser.isIE) {
x = window.event.clientX + document.documentElement.scrollLeft
+ document.body.scrollLeft;
y = window.event.clientY + document.documentElement.scrollTop
+ document.body.scrollTop;
}
if (browser.isNS) {
x = event.clientX + window.scrollX;
y = event.clientY + window.scrollY;
}
dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";
if (browser.isIE) {
window.event.cancelBubble = true;
window.event.returnValue = false;
}
if (browser.isNS)
event.preventDefault();
}

function dragStop(event) {

if (browser.isIE) {
document.detachEvent("onmousemove", dragGo);
document.detachEvent("onmouseup",   dragStop);
}
if (browser.isNS) {
document.removeEventListener("mousemove", dragGo,   true);
document.removeEventListener("mouseup",   dragStop, true);
}
}