/************************************
* ClientInfo.js v1.2				*
* © 2000 - 2002 Ian White			*
* www.fuzzygroove.com				*
*									*
* Based on code by Dan Steinman	 	*
* www.dansteinman.com				*
*									*
************************************/

function Browser() { //modified code from the makers of DynAPI2 (which doesn't support macs but is otherwise an amazing API)
	var b=navigator.appName;
	if (b=="Netscape") this.b="ns";
	else if (b=="Microsoft Internet Explorer") this.b="ie";
	else this.b=b;
	this.version=navigator.appVersion;
	this.v=parseInt(this.version);
	this.ns=(this.b=="ns" && this.v>=4);
	this.ns4=(this.b=="ns" && this.v==4);
	this.ns5=(this.b=="ns" && this.v==5);
	this.ie=(this.b=="ie" && this.v>=4);
	this.ie4=(this.version.indexOf('MSIE 4')>0);
	this.ie5=(this.version.indexOf('MSIE 5')>0);
	this.ie55=(this.version.indexOf('MSIE 5.5')>0);
	this.opera=(navigator.userAgent.indexOf('Opera') != -1)? true : false;
	this.dom=((document.createRange&&(document.createRange().createContextualFragment))?true:false);
	this.min=(this.ns||this.ie);
	var ua=navigator.userAgent.toLowerCase();
	if (ua.indexOf("win")>-1) this.platform="win32";
	else if (ua.indexOf("mac")>-1) this.platform="mac";
	else this.platform = "other";
	this.mac = (this.platform=="mac");
	this.win = (this.platform=="win32");
}
is = new Browser();


function doVoid() { x = 1+1; }

function getLayerDoc(layerstr,rel) { // returns the crossbrowser path to the document of a layer (for NS 4)
	var docLayer = "document";
	(rel)? (rel = "." + rel) : (rel = "");
	if(is.ns && !is.dom) docLayer += rel + ".layers['" + layerstr + "'].document";
	
	return eval(docLayer);
}

function getLayer(layerstr, rel) { // returns the crossbrowser path to the document of a layer (for NS 4)
	//(rel)? (rel = "document.layers['" + rel + "'].") : (rel = "");
	(rel)? (rel = "." + rel) : (rel = "");
	var ref = is.dom? document.getElementById(layerstr) : is.ie? document.all[layerstr] : is.ns4? eval( "document" + rel + ".layers['" + layerstr + "']") : false;
	
	return ref;
}

function getCss(layer) {
	var css = is.dom? layer.style : is.ie? layer.style : is.ns4? layer : false;
	return css;
}

function setClip(layer, clip) {
	var c = getCss(layer).clip;
	if (is.ns4) {
		c.top		= clip[0];
		c.right		= clip[1];
		c.bottom	= clip[2];
		c.left		= clip[3];
	}
	else if (is.ie || is.dom) getCss(layer).clip = "rect("+clip[0]+"px "+clip[1]+"px "+clip[2]+"px "+clip[3]+"px)"
}

function mouseTrack() {
	this.x = 0; this.y = 0;
	this.clickX = 0; this.clickY = 0;
}
mouseTrack.prototype.update = mtMUpdate;
mouseTrack.prototype.click = mtCUpdate;

function mtMUpdate(e) {
	if(is.ie) {
		this.x = window.event.clientX;
		this.y = window.event.clientY;
	} else if(is.ns4 || is.ns5) {
        this.x = e.pageX;
        this.y = e.pageY;
    }
}

function mtCUpdate(e) {
	if(is.ie) {
		this.clickX = window.event.clientX;
		this.clickY = window.event.clientY;
	} else if(is.ns4 || is.ns5) {
        this.clickX = e.pageX;
        this.clickY = e.pageY;
    }
}

function newImage() { // needed to keep animated gifs moving after a click in ns.
	if(is.ns && !is.dom)
		return new Image(5,5);
	else return new Image();
}

function showLayer(layer) {
	getCss(layer).visibility = is.ns4? 'show' : 'visible';
}

function hideLayer(layer) {
	getCss(layer).visibility = is.ns4? 'hide' : 'hidden';
}

// modified from code stolen off K10K.net
function noFocusRect() {
	if (is.dom || is.ie) {
		if (is.dom) {
			var links = document.getElementsByTagName("a");
			var selects = document.getElementsByTagName("select");
		} else {
			var links = document.all.tags("a");
			var selects = document.all.tags("select");
		}
		for(i=0; i<links.length; i++) {
			links[i].onfocus = new Function("this.blur()");
		}
		for(i=0; i<selects.length; i++) {
			selects[i].onfocus = new Function("this.blur()");
		}
	}
}