<!--

var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 && parseFloat(navigator.appVersion) >= 4) ? 1 : 0;
var isMinIE4 = (document.all) ? 1 : 0;
var isMinIE5 = (isMinIE4 && navigator.appVersion.indexOf("5.") >= 0) ? 1 : 0;
var isMinIE5_5 = (isMinIE5 && navigator.appVersion.indexOf("5.5") >= 0) ? 1 : 0;

function hideLayer(layer){
	if(isMinNS4)
		layer.visibility="hide";
	if(isMinIE4)
		layer.style.visibility="hidden";
}

function showLayer(layer){
	if(isMinNS4)
		layer.visibility="show";
	if(isMinIE4)
		layer.style.visibility="visible";
}

function inheritLayer(layer){
	if(isMinNS4)
		layer.visibility="inherit";
	if(isMinIE4)
		layer.style.visibility="inherit";
}

function moveLayerTo(layer,x,y){
	if(isMinNS4)
		layer.moveTo(x,y);
	if(isMinIE4){
		layer.style.left=x;
		layer.style.top=y;
	}
}

function getPageLeft(layer){
	var x;
	if(isMinNS4)
		return layer.pageX;
	if(isMinIE4){
		x=0;
		while(layer.offsetParent!=null){
			x+=layer.offsetLeft;
			layer=layer.offsetParent;
		}
		x+=layer.offsetLeft;
		return x;
	}
	return -1;
}

function getPageTop(layer){
	var y;
	if(isMinNS4)
		return layer.pageY;
	if(isMinIE4){
		y=0;
		while(layer.offsetParent!=null)	{
			y+=layer.offsetTop;
			layer=layer.offsetParent;
		}
		y+=layer.offsetTop;
		return y;
	}
	return -1;
}

function getLayer(name){
	if(isMinNS4)
		return findLayer(name, document);
//		return document.layers[name];
	if(isMinIE4)
//		return eval('document.all.'+name);
		return document.all(name);
	return null;
}

function findLayer(name, doc){
	var i,layer;
	for(i=0;i<doc.layers.length;i++){
		layer=doc.layers[i];
		if(layer.name==name)
			return layer;
		if(layer.document.layers.length>0)
			if((layer=findLayer(name,layer.document))!=null)
				return layer;
	}
	return null;
}

function getWindowWidth(){
	if(isMinNS4)
		return window.innerWidth;
	if(isMinIE4)
		return document.body.clientWidth;
	return -1;
}

function getWindowHeight(){
	if(isMinNS4)
		return window.innerHeight;
	if(isMinIE4)
		return document.body.clientHeight;
	return -1;
}

function getPageWidth(){
	if(isMinNS4)
		return document.width;
	if(isMinIE4)
		return document.body.scrollWidth;
	return -1;
}

function getPageHeight(){
	if(isMinNS4)
		return document.height;
	if(isMinIE4)
		return document.body.scrollHeight;
	return -1;
}

function getPageScrollX(){
	if(isMinNS4)
		return window.pageXOffset;
	if(isMinIE4)
		return document.body.scrollLeft;
	return -1;
}

function getPageScrollY(){
	if(isMinNS4)
		return window.pageYOffset;
	if(isMinIE4)
		return document.body.scrollTop;
	return -1;
}

function posLayer(id, x, y){
	moveLayerTo(getLayer(id), x, getPageScrollY() + y);
	return id;
}

//-->