// Declarations	
var d = document;
var i = 0;
var n = navigator;
var s = d.styleSheets[0];

var nVer = n.appVersion;
var nApp = n.appName;
var nUser = n.userAgent;

var isIE6 = nVer.toLowerCase().indexOf("msie 6.0")!=-1;
var isIE  = nVer.indexOf("MSIE")!=-1;
var isWin = nVer.toLowerCase().indexOf("win")!=-1;
var isOpera = nUser.indexOf("Opera")!=-1;
var isSafari = nVer.indexOf("Safari")!=-1;
var isFirefox = nUser.indexOf("Firefox")!=-1;
var isChrome = nUser.indexOf("Chrome")!=-1;
	
function gE(elem) { return d.getElementById(elem) };
function addCSS(elem, rule) { isIE ? s.addRule(elem, rule) : s.insertRule(elem + '{' + rule + '}', 1); } 

// Executed at end of every page	
function onLoad(curPage) { 
  var BtnsArray = new Array('home', 'about', 'vsk-events', 'contact');
	  
 	isIE6 && gE('email-form') ? gE('email-form').style.display = "none" : 0;
	
 	for (i=0; i < BtnsArray.length; i++) {
		var btn = gE(BtnsArray[i]);
		addBtn(btn, "images/menu/"+btn.id+"-mo.jpg");
	}
	




	function addBtn(btn, file) { 
		var img = new Image();
		img.src = file;
		 
		//!isIE6 ? btn.style.visibility = "visible" : 0;
		
		if (btn.id != curPage) { 
			btn.attachEvent ? btn.attachEvent('onmouseover', switchImage) : btn.addEventListener('mouseover', switchImage, true);
			btn.attachEvent ? btn.attachEvent('onmouseout', restoreImage) : btn.addEventListener('mouseout', restoreImage, true);
			btn.style.cursor = "pointer";
		} else {
 			btn.src = "images/menu/btn-"+btn.id+"-mo.png";
		}
		
 		function switchImage() 	{ btn.src = "images/menu/btn-"+btn.id+"-mo.png"; }
		function restoreImage() { btn.src = "images/menu/btn-"+btn.id+".png";	}
	}
}

function checkCalibri() { 
	var detectFont = new Detector();
	return (!(detectFont.test('Calibri'))); 
}

function customisePage() { 
	if (isIE) { 
		//		s.addRule('h1', 'font-size:27px !important;');
		//		s.addRule('h2', 'font-size:24px !important;');
	} else { 
		//		s.insertRule('h1 { font-size:27px !important; }', 0);
		//		s.insertRule('h2 { font-size:24px !important;  }', 0);
	}
} 
	
function mouseover(button) {
	button.style.backgroundImage = "url(images/"+button.id+"-mo.png)";
}
function mouseout(button) {
	button.style.backgroundImage = "url(images/"+button.id+".png)";
}
function clickButton(button) {
	button.id!="home" ? window.location=button.id+".php" : window.location="index.php";
}

function googleAnalytics() { 
	var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
	document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
	try { var pageTracker = _gat._getTracker("UA-5720745-11"); pageTracker._trackPageview(); } catch(err) { } ;
}