var timer = null;
aTag ="";
picQty = 12;

function doMasthead(){
	randomNum = Math.floor ((Math.random() * picQty));
	var Buffer = "";
	Buffer = Buffer+"<a href='http://www.kellogg.edu'><div id='masthead"+randomNum+"'><span><strong>KELLOGG COMMUNITY COLLEGE</strong></span></div></a>";
	document.write(Buffer);
	
}

	function getObj(name)
	{
	  if (document.getElementById)
	  {
	  	this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	  }
	  else if (document.all)
	  {
		this.obj = document.all[name];
		this.style = document.all[name].style;
	  }
	  else if (document.layers)
	  {
	   	this.obj = document.layers[name];
	   	this.style = document.layers[name];
	  }
	}

	function noNav()
	{
  	  var x = new getObj(aTag);
  	  x.style.visibility = "hidden";
	}
	
	function turnon(theTag,tag)
	{
	  var x = new getObj(theTag);
	  var y = new getObj(tag);
	  clearTimeout(timer);
	  if(aTag != ""){
	  noNav();
	  }
	  x.style.visibility = "visible";
	  y.style.background = "#86a6c6";
	  
	}
	
	function turnoff(theTag,tag)
	{
// 	  var x = new getObj(theTag);
// 	  x.style.visibility = "hidden";
//	  y.style.background = "url(images/button.gif) repeat-x";
	  var y = new getObj(tag);
	  y.style.background = "";
 	  clearTimeout(timer);
	  aTag = theTag;
	  timer = setTimeout("noNav()",200);
	}
		
	function setBookmark(url,title){
		if (title == "") title = url;
		if(document.all){
			window.external.AddFavorite(url,title);
		}
		else if(window.sidebar){
			window.sidebar.addPanel(title,url,"");
		}
		else if( window.opera && window.print )
		{
			var mbm = document.createElement('a');
			mbm.setAttribute('rel','sidebar');
			mbm.setAttribute('href',url);
			mbm.setAttribute('title',title);
			mbm.click();
		}
	}

// ************ Multi Browser Detection Routine
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();