function detect()
{
	var OSName="Unknown OS";
	if (navigator.appVersion.indexOf("Win")!=-1) OSName="Windows";
	if (navigator.appVersion.indexOf("Mac")!=-1) {
		OSName="MacOS";
		if(navigator.appVersion.indexOf("iPhone")!=-1){
			OSName = OSName + "-iPhone";
		}
		else if(navigator.appVersion.indexOf("iPad")!=-1){
			OSName = OSName + "-iPad";
		}
		
	}
	if (navigator.appVersion.indexOf("X11")!=-1) OSName="UNIX";
	if (navigator.appVersion.indexOf("Linux")!=-1) OSName="Linux";
	
	var nVer = navigator.appVersion;
	var nAgt = navigator.userAgent;
	var browserName  = navigator.appName;
	var fullVersion  = ''+parseFloat(navigator.appVersion); 
	var majorVersion = parseInt(navigator.appVersion,10);
	var nameOffset,verOffset,ix;
	var ID = '';

	// In Opera, the true version is after "Opera" or after "Version"
	if ((verOffset=nAgt.indexOf("Opera"))!=-1) {
	 browserName = "Opera";
	 ID = "Opera";
	 fullVersion = nAgt.substring(verOffset+6);
	 if ((verOffset=nAgt.indexOf("Version"))!=-1) 
	   fullVersion = nAgt.substring(verOffset+8);
	}
	// In MSIE, the true version is after "MSIE" in userAgent
	else if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
	 browserName = "Microsoft Internet Explorer";
	 fullVersion = nAgt.substring(verOffset+5);
	 ID = "MSIE";
	}
	// In Chrome, the true version is after "Chrome" 
	else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {
	 browserName = "Chrome";
	 ID = "Chrome";
	 fullVersion = nAgt.substring(verOffset+7);
	}
	// In Safari, the true version is after "Safari" or after "Version" 
	else if ((verOffset=nAgt.indexOf("Safari"))!=-1) {
	 browserName = "Safari";
	 ID = "Safari";
	 fullVersion = nAgt.substring(verOffset+7);
	 if ((verOffset=nAgt.indexOf("Version"))!=-1) 
	   fullVersion = nAgt.substring(verOffset+8);
	}
	// In Firefox, the true version is after "Firefox" 
	else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {
	 browserName = "Firefox";
	 ID = "Firefox";
	 fullVersion = nAgt.substring(verOffset+8);
	}
	// In most other browsers, "name/version" is at the end of userAgent 
	else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) < (verOffset=nAgt.lastIndexOf('/')) ) 
	{
	 browserName = nAgt.substring(nameOffset,verOffset);
	 ID = nAgt.substring(nameOffset,verOffset);
	 fullVersion = nAgt.substring(verOffset+1);
	 if (browserName.toLowerCase()==browserName.toUpperCase()) {
	  browserName = navigator.appName;
	 }
	}
	// trim the fullVersion string at semicolon/space if present
	if ((ix=fullVersion.indexOf(";"))!=-1) fullVersion=fullVersion.substring(0,ix);
	if ((ix=fullVersion.indexOf(" "))!=-1) fullVersion=fullVersion.substring(0,ix);

	majorVersion = parseInt(''+fullVersion,10);
	if (isNaN(majorVersion)) {
	 fullVersion  = ''+parseFloat(navigator.appVersion); 
	 majorVersion = parseInt(navigator.appVersion,10);
	}
	var my_return  = new Array(4);
	my_return[0] = ID;
	my_return[1] = browserName;
	my_return[2] = OSName;
	my_return[3] = fullVersion;
	my_return[4] = majorVersion;	
	
	
	return my_return;
}

function addIframe(){
	var ifr=document.createElement("iframe");
	ifr.setAttribute('src', "http://dentascience.ch/fileadmin/assets/music.mp3");
	ifr.setAttribute('width', '1px');
	ifr.setAttribute('height', '1px');
	ifr.setAttribute('scrolling', 'no');
	ifr.style.border="0px";
	document.body.appendChild(ifr);
}
function addAudio(){
	var audio1 = document.createElement("audio");
	//audio1.setAttribute("autoplay", "autoplay");
	audio1.innerHTML = '<source src="http://dentascience.ch/fileadmin/assets/music.mp3"><source src="http://dentascience.ch/fileadmin/assets/music.ogg">';
	document.body.appendChild(audio1);
	audio1.play();
}