/* set up boolean values to record the browser */
var isNew=0;
var isNS4=0;
var isIE4=0;
var isNS6plus=0;

var NetscapeBrowser=0;
if (navigator.appName == "Netscape")
	{NetscapeBrowser=1;}
var IEBrowser=0;
if (navigator.appName == "Microsoft Internet Explorer")
	{IEBrowser=1;}

/* determine if this is a Netscape 4.0x browser */
var NSversNum = 0;
var isNS4_0x_Version = false;
if (NetscapeBrowser)
{
	NSversNum = parseFloat(navigator.appVersion);
	if ((NSversNum == "4.00") || (NSversNum == "4.01")
	 || (NSversNum == "4.02") || (NSversNum == "4.03")
	 || (NSversNum == "4.04") || (NSversNum == "4.05")
	 || (NSversNum == "4.06") || (NSversNum == "4.07")
	 || (NSversNum == "4.08") || (NSversNum == "4.09"))
		{isNS4_0x_Version = true;}
}

var IEversNum = 0;
var isIE5up = 0;
if (IEBrowser == 1)
{
	if (navigator.appVersion.indexOf("MSIE") != -1) {
		var temp = navigator.appVersion.split("MSIE");
		IEversNum = parseFloat(temp[1]);
		if (IEversNum > 5) {isIE5up = 1;}
	}
}

/*determines the browser name and browser version */
var brow = ((navigator.appName) + (parseInt(navigator.appVersion)));

/* reasign variable depending on the browser */
if (parseInt(navigator.appVersion) >= 5)
	{isNew=1;}
else if (brow == "Netscape4")
	{isNS4 =1;}
else if (brow == "Microsoft Internet Explorer4")
	{isIE4 =1;}

var docObj;
var docObjIds;
var styleObj;

var isDHTMLBrowser=0;
if (isNS4 || isIE4 || isNew)
{
	isDHTMLBrowser=1;
		
	docObj = (NetscapeBrowser) ? 'document' : 'document.all';
	docObjIds = (NetscapeBrowser) ? 'document.layers.' : 'document.all.';
	styleObj = (NetscapeBrowser) ? '' : '.style';
}

var visible;
var hidden;
if (NetscapeBrowser) {
        visible = 'show';
        hidden = 'hide';
	if(document.getElementById) {isNS6plus=1;} //NS6
}
else
{
        visible = "visible";
        hidden = "hidden";
}

//set value if this is a Mac Machine
var isMac=navigator.userAgent.indexOf("Mac") >0;