var ns4;
var op5;
var op6;
var agt;
var mac;
var ie;
var mac_ie;
function sniffBrowsers() {
ns4 = document.layers;
op5 = (navigator.userAgent.indexOf("Opera 5")!=-1) ||(navigator.userAgent.indexOf("Opera/5")!=-1);
op6 = (navigator.userAgent.indexOf("Opera 6")!=-1) ||(navigator.userAgent.indexOf("Opera/6")!=-1);
agt=navigator.userAgent.toLowerCase();
mac = (agt.indexOf("mac")!=-1);
ie = (agt.indexOf("msie") != -1);
mac_ie = mac && ie;
}
function getStyleObject(objectId, doc) {
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 getObjNN4(document,objectId);
} else {
return false;
}
}
function changeObjectVisibility(objectId, newVisibility) {
var styleObject = getStyleObject(objectId, document);
if(styleObject) {
styleObject.visibility = newVisibility;
return true;
} else {
return false;
}
}
function findImage(name, doc) {
var i, img;
for (i = 0; i < doc.images.length; i++) {
if (doc.images[i].name == name) {
return doc.images[i];
}
}
for (i = 0; i < doc.layers.length; i++) {
if ((img = findImage(name, doc.layers[i].document)) != null) {
img.container = doc.layers[i];
return img;
}
}
return null;
}
function getImage(name) {
if (document.layers) {
return findImage(name, document);
}
return null;
}
function getObjNN4(obj,name)
{
var x = obj.layers;
var foundLayer;
for (var i=0;i<x.length;i++)
{
if (x[i].id == name)
foundLayer = x[i];
else if (x[i].layers.length)
var tmp = getObjNN4(x[i],name);
if (tmp) foundLayer = tmp;
}
return foundLayer;
}
function getElementHeight(Elem) {
if (ns4) {
var elem = getObjNN4(document, Elem);
return elem.clip.height;
} else {
var elem;
if(document.getElementById) {
var elem = document.getElementById(Elem);
} else if (document.all){
var elem = document.all[Elem];
}
if (op5) {
xPos = elem.style.pixelHeight;
} else {
xPos = elem.offsetHeight;
}
return xPos;
}
}
function getElementWidth(Elem) {
if (ns4) {
var elem = getObjNN4(document, Elem);
return elem.clip.width;
} else {
var elem;
if(document.getElementById) {
var elem = document.getElementById(Elem);
} else if (document.all){
var elem = document.all[Elem];
}
if (op5) {
xPos = elem.style.pixelWidth;
} else {
xPos = elem.offsetWidth;
}
return xPos;
}
}
function getElementLeft(Elem) {
if (ns4) {
var elem = getObjNN4(document, Elem);
return elem.pageX;
} else {
var elem;
if(document.getElementById) {
var elem = document.getElementById(Elem);
} else if (document.all){
var elem = document.all[Elem];
}
xPos = elem.offsetLeft;
tempEl = elem.offsetParent;
while (tempEl != null) {
xPos += tempEl.offsetLeft;
tempEl = tempEl.offsetParent;
}
return xPos;
}
}
function getElementTop(Elem) {
if (ns4) {
var elem = getObjNN4(document, Elem);
return elem.pageY;
} else {
if(document.getElementById) {	var elem = document.getElementById(Elem);
} else if (document.all) {
var elem = document.all[Elem];
}
yPos = elem.offsetTop;
tempEl = elem.offsetParent;
while (tempEl != null) {
yPos += tempEl.offsetTop;
tempEl = tempEl.offsetParent;
}
return yPos;
}
}
function getImageLeft(myImage) {
var x, obj;
if (document.layers) {
var img = getImage(myImage);
if (img.container != null)
return img.container.pageX + img.x;
else
return img.x;
} else {
return getElementLeft(myImage);
}
return -1;
}
function getImageTop(myImage) {
var y, obj;
if (document.layers) {
var img = getImage(myImage);
if (img.container != null)
return img.container.pageY + img.y;
else
return img.y;
} else {
return getElementTop(myImage);
}
return -1;
}
function getImageWidth(myImage) {
var x, obj;
if (document.layers) {
var img = getImage(myImage);
return img.width;
} else {
return getElementWidth(myImage);
}
return -1;
}
function getImageHeight(myImage) {
var y, obj;
if (document.layers) {
var img = getImage(myImage);
return img.height;
} else {
return getElementHeight(myImage);
}
return -1;
}
function moveXY(myObject, x, y) {
obj = getStyleObject(myObject)
if (ns4) {
obj.top = y;
obj.left = x;
} else {
if (op5) {
obj.pixelTop = y;
obj.pixelLeft = x;
} else {
obj.top = y + 'px';
obj.left = x + 'px';
}	}
}
function changeClass(Elem, myClass) {
var elem;
if(document.getElementById) {
var elem = document.getElementById(Elem);
} else if (document.all){
var elem = document.all[Elem];
}
if (op5 || op6) elem.style.className = myClass;
else elem.className = myClass;
}
function changeBGColour(myObject, colour) {
if (ns4) {
var obj = getObjNN4(document, myObject);
obj.bgColor=colour;
} else {
var obj = getStyleObject(myObject);
if (op5) {
obj.background = colour;	} else {
obj.backgroundColor = colour;
}	}
}
function changeImage(target, source) {
var imageObj;
if (ns4) {
imageObj = getImage(target);
if (imageObj) imageObj.src = eval(source).src;
} else {
imageObj = eval('document.images.' + target);
if (imageObj) imageObj.src = eval(source).src;
}
}