//-------------------------- Browser Determination -----------------------//

br4x=(((navigator.appName=="Netscape") || (navigator.appName == "Microsoft Internet Explorer")) && (parseInt(navigator.appVersion) >= 4 ));
IE4x=(br4x && (navigator.appName == "Microsoft Internet Explorer"));
NN4x=((br4x && (navigator.appName == "Netscape")) || (navigator.appName == "Mozilla"));




function createImageArray(n)	{
	this.length=n;
	for (var i=0; i<=n; i++) this[i] = new Image()
	return this	}



function changeButtonColor(button_name) {
	document.images[button_name].src=(index>0)? eval(button_name)[index=0].src : eval(button_name)[index=1].src;
}



function createCatalogWindow(catalog_item,Width,Height) {
	WinFeatures = "top="+(screen.height-Height)/2+",left="+(screen.width-Width)/2+",width="+(Width+20)+",height="+Height+",Status=no,toolbar=no,menubar=no,location=no,directories=no,scrollbars=yes";
	w = window.open(catalog_item,"catalogWindow",WinFeatures);
}

filled=0;

function fillBg(num) {
	if ((num==0) && (filled>0)) {
		document.all['menu'+filled+'_right'].bgColor = '#909090';
		//document.all['menu'+filled].bgColor = '#AAAAAA';
		filled=0;
		
		
		}
	else if (num>0) {
		document.all['menu'+num+'_right'].bgColor = '#FF7711';
		//document.all['menu'+num].bgColor = '#CCCCCC';
		filled=num;
		
		
		}
}
	
// ---------Layer visibility-----------

function hideLayer(parLayer,layer) {
	if (NN4x) {
		if (parLayer == '')
			document.layers[layer].visibility = "hide";
			else document.layers[parLayer].document.layers[layer].visibility = "hide";
		}
	if (IE4x) document.all[layer].style.visibility = "hidden";}

function showLayer(parLayer,layer) {
	if (NN4x) {
		if (parLayer == '')
			document.layers[layer].visibility = "show";
			else document.layers[parLayer].document.layers[layer].visibility = "show";
		}
	if (IE4x) document.all[layer].style.visibility = "visible";}
	
function getLayerLeft(layer) {
	if (NN4x) layerLeft = document.layers[layer].pageX;
	return layerLeft;
}


//------------------------- New Window Creation --------------------------//

function CreateMainWindow(Width,Height,fName)
{
	wTop = (screen.height-Height)/3;
	wLeft = (screen.width-Width)/2;
	WinFeatures = "top="+wTop+",left="+wLeft+",width="+Width+",height="+Height+",maximize=no,minimize=no,Status=no,toolbar=no,menubar=no,location=no,directories=no,scrollbars=yes,resize=no";
	MainWindow = window.open(fName,"MainWindow",WinFeatures);
}