window.onload = initializeHacks;


function initializeHacks() {
/*
    if ((navigator.appVersion.indexOf('MSIE 5') != -1) 	&& (navigator.platform.indexOf('Mac') != -1) && getStyleObject('blankDiv')) {
		window.onresize = explorerMacResizeFix;
    }
    resizeBlankDiv(); */
	createFakeEventObj();
}


function isMSIE5Mac() {
	return ((navigator.appVersion.indexOf('MSIE 5') != -1)
	&& (navigator.platform.indexOf('Mac') != -1));
}

function isOpera() {
	return (navigator.userAgent.indexOf("Opera 5")!=-1) ||(navigator.userAgent.indexOf("Opera/5")!=-1);
}

function createFakeEventObj() {
    if (!window.event) {
	window.event = false;
    }
}

/*
// unused functions
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);
} */

function getStyleObject(objectId) {
	var obj = getObject(objectId);
	if (obj) return obj.style;
	else if (document.layers && document.layers[objectId])
			return getObjNN4(objectId);
	else return false;
}

function getObject(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		return document.getElementById(objectId);
	} else if (document.all && document.all(objectId)) {
			return document.all(objectId);
	} else return null;
}

function changeObjectVisibility(objectId, newVisibility) {
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.visibility = newVisibility;
	return true;
    } else {
	return false;
    }
}

function getElementHeight(Elem) {
	var elem = getObject(Elem);
	return elem.offsetHeight;
}

function getElementWidth(Elem) {
	var elem = getObject(Elem);
	return elem.offsetWidth;
}

function getElementLeft(Elem) {
	var elem = getObject(Elem);
	var xpos = elem.offsetLeft;
	tempEl = elem.offsetParent;
  	while (tempEl != null) {
  		xpos += tempEl.offsetLeft;
  		tempEl = tempEl.offsetParent;
  	}
	return xpos;
}

function getElementTop(Elem) {
	var elem = getObject(Elem);
	var ypos = elem.offsetTop;
	tempEl = elem.offsetParent;
	while (tempEl != null) {
  		ypos += tempEl.offsetTop;
  		tempEl = tempEl.offsetParent;
  	}
	return ypos+7;
}

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 getImagePageLeft(img) {
	var x, obj;
	if (document.layers) {
    	if (img.container != null)
			return img.container.pageX + img.x;
		else
			return img.x;
  	}
	return -1;
}

function getImagePageTop(img) {
	var y, obj;
	if (document.layers) {
		if (img.container != null)
			return img.container.pageY + img.y;
		else
			return img.y;
	}
	return -1;
}

function getObjNN4(name)
{
	var x = document.layers;
	var foundLayer = false;
	for (var i=0;i<x.length && !foundLayer;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;
}