/* browser detection for rollout menus */
var openid="none";
var docheck = (document.all!=null);

var browserdetect = {
	init: function () {
		this.browser = this.searchstring(this.databrowser) || "an unknown browser";
		this.version = this.searchversion(navigator.useragent)
			|| this.searchversion(navigator.appversion)
			|| "an unknown version";
		this.os = this.searchstring(this.dataos) || "an unknown os";
	},
	searchstring: function (data) {
		for (var i=0;i<data.length;i++)	{
			var datastring = data[i].string;
			var dataprop = data[i].prop;
			this.versionsearchstring = data[i].versionsearch || data[i].identity;
			if (datastring) {
				if (datastring.indexof(data[i].substring) != -1)
					return data[i].identity;
			}
			else if (dataprop)
				return data[i].identity;
		}
	},
	searchversion: function (datastring) {
		var index = datastring.indexof(this.versionsearchstring);
		if (index == -1) return;
		return parsefloat(datastring.substring(index+this.versionsearchstring.length+1));
	},
	databrowser: [
		{ 	string: navigator.useragent,
			substring: "omniweb",
			versionsearch: "omniweb/",
			identity: "omniweb"
		},
		{
			string: navigator.vendor,
			substring: "apple",
			identity: "safari"
		},
		{
			prop: window.opera,
			identity: "opera"
		},
		{
			string: navigator.vendor,
			substring: "icab",
			identity: "icab"
		},
		{
			string: navigator.vendor,
			substring: "kde",
			identity: "konqueror"
		},
		{
			string: navigator.useragent,
			substring: "firefox",
			identity: "firefox"
		},
		{
			string: navigator.vendor,
			substring: "camino",
			identity: "camino"
		},
		{		// for newer netscapes (6+)
			string: navigator.useragent,
			substring: "netscape",
			identity: "netscape"
		},
		{
			string: navigator.useragent,
			substring: "msie",
			identity: "explorer",
			versionsearch: "msie"
		},
		{
			string: navigator.useragent,
			substring: "gecko",
			identity: "mozilla",
			versionsearch: "rv"
		},
		{ 		// for older netscapes (4-)
			string: navigator.useragent,
			substring: "mozilla",
			identity: "netscape",
			versionsearch: "mozilla"
		}
	],
	dataos : [
		{
			string: navigator.platform,
			substring: "win",
			identity: "windows"
		},
		{
			string: navigator.platform,
			substring: "mac",
			identity: "mac"
		},
		{
			string: navigator.platform,
			substring: "linux",
			identity: "linux"
		}
	]

};
browserdetect.init();


/* rollout menu functions */
function getlayer(id) {  
		if (browserdetect.browser == "explorer" || browserdetect.browser == "opera")
   		return document.all[id];
	else if (browserdetect.browser == "netscape")
		return document.layers[id];
	else
		return document.getelementbyid(id);
}

function showlayer(id) {        
   var get = getlayer(id)
   if (get != null)          
     	if (browserdetect.browser != "netscape")
         	get.style.visibility = "visible";
      	else
         	get.visibility = "show";
}     
  
function hidelayer(id) {
	var get = getlayer(id)        
	if (get != null)        
      if (browserdetect.browser != "netscape")
         get.style.visibility = "hidden";
      else
         get.visibility = "hide";
}

function drilldown(id,div) {
	if (div == 'yes') {
		iddiv = id+'div';
		if (openid == 'none') {
			showlayer(iddiv);
			openid = id;
			openiddiv = iddiv;
		} else {
			hidelayer(openiddiv);
			showlayer(iddiv);
			openid = id;
			openiddiv = iddiv;
		}
	} else {
		if (openid == 'none') {
		} else {
			hidelayer(openiddiv);
			openid = 'none';
		}
	}
}

function divrollover(name) {
	openid = name;
	openiddiv = name+"div";
	showlayer(openiddiv);
}

function divrollout(name) {
	hidelayer(name+'div');
	openid = 'none';
	openiddiv = 'none';
}

function closebut(name) {
	hidelayer(name+'div');
	openid = 'none';
	openiddiv = 'none';
}

function clearall(name,count){
	for(i=1;i<=count;i++){
		//alert(name+i);
		hidelayer(name+i+'div');
	}
}