// Show/Hide functions:
function turnOff(dname) { 
document.getElementById(dname).style.display = 'none'; 
} 
function turnOn(dname) { 
document.getElementById(dname).style.display = 'block'; 
} 

function removeBorder() { 
document.getElementById('video1').style.background = '#262829'; 
document.getElementById('video2').style.background = '#262829'; 
document.getElementById('video3').style.background = '#262829'; 
document.getElementById('video4').style.background = '#262829'; 
document.getElementById('video5').style.background = '#262829'; 
}

// zeigt je nach URL (hash) ausgewaehltes Video an:
function checkHash() {
if (window.location.hash == "#Basics" || window.location.hash == "") {
    document.getElementById("video-basics").style.display="block";
	document.getElementById('video1').style.background = '#fff'; 
	}
if (window.location.hash == "#Installation") {
	 document.getElementById("video-installation").style.display="block";
	document.getElementById('video2').style.background = '#fff'; 
	}
if (window.location.hash == "#Scheduling") {
	 document.getElementById("video-scheduling").style.display="block";
	document.getElementById('video3').style.background = '#fff'; 
	}
if (window.location.hash == "#Revising") {
	 document.getElementById("video-revising").style.display="block";
	document.getElementById('video4').style.background = '#fff'; 
	}
if (window.location.hash == "#Tips") {
	 document.getElementById("video-tips").style.display="block";
	document.getElementById('video5').style.background = '#fff'; 
	}
}