<!--
var ie = (document.all)? true : false;
var nn4 = (document.layers)? true : false;
var nn5 = (parseInt(navigator.appVersion)>=5)? true : false;
var opera = (document.appName == "Opera" && parseInt(navigator.appVersion)>=4)? true : false;
var vis = false;
var pLayer;
var x,y;

if (nn4) {
	yCenter = "window.innerHeight/2";
	xCenter = "window.innerWidth/2";
	layerRef="document.layers['";
	styleSwitch="']";
	leftPos = ".pixelLeft";
	topPos = ".pixelTop";
	lx = '.pageX';
	ly = '.pageY';
} else if (ie) {
	yCenter = "document.body.clientHeight/2";
	xCenter = "document.body.clientWidth/2";
	layerRef="document.all.item('";
	styleSwitch="').style";
	leftPos = ".left";
	topPos = ".top";
	lx = '.x';
	ly = '.y';
} else if (nn5 || opera) {
	yCenter = "document.body.clientHeight/2";
	xCenter = "document.body.clientWidth/2";
	layerRef="document.getElementById('";
	styleSwitch="').style";
	leftPos = ".left";
	topPos = ".top";
	lx = '.layerX';
	ly = '.layerY';
}

function show(layerN,evnt) {
	if (ie || opera) {
		px = evnt.x;
		py = evnt.y+15;
	} else {
		px = evnt.layerX;
		py = evnt.layerY;
	}
	if((pLayer!=null) && (pLayer!=layerN))
		eval(layerRef+pLayer+styleSwitch+".visibility='hidden'");
	eval(layerRef+layerN+styleSwitch+leftPos+"="+eval(px));
	eval(layerRef+layerN+styleSwitch+topPos+"="+eval(py));
	eval(layerRef+layerN+styleSwitch+".visibility='visible'");
	pLayer = layerN;
	vis = true;
}

function hide(layerN) {
	eval(layerRef+layerN+styleSwitch+".visibility='hidden'");
	vis = false;
}
function switchLayer(layerN,evnt) {
	if (vis)
		hide(layerN)
	else
		show(layerN,evnt)
}

//-->