function Button1() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="block";
document.getElementById('block2').style.display="none";
document.getElementById('block3').style.display="none";
document.getElementById('block4').style.display="none";
document.getElementById('block5').style.display="none";
document.getElementById('block6').style.display="none";
document.getElementById('button1').className="buttonClicked1";
document.getElementById('button2').className="button2";
document.getElementById('button3').className="button3";
document.getElementById('button4').className="button4";
document.getElementById('button5').className="button5";
document.getElementById('button6').className="button6";
}

function Button2() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="none";
document.getElementById('block2').style.display="block";
document.getElementById('block3').style.display="none";
document.getElementById('block4').style.display="none";
document.getElementById('block5').style.display="none";
document.getElementById('block6').style.display="none";
document.getElementById('button2').className="buttonClicked2";
document.getElementById('button1').className="button1";
document.getElementById('button3').className="button3";
document.getElementById('button4').className="button4";
document.getElementById('button5').className="button5";
document.getElementById('button6').className="button6";
}

function Button3() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="none";
document.getElementById('block2').style.display="none";
document.getElementById('block3').style.display="block";
document.getElementById('block4').style.display="none";
document.getElementById('block5').style.display="none";
document.getElementById('block6').style.display="none";
document.getElementById('button3').className="buttonClicked3";
document.getElementById('button2').className="button2";
document.getElementById('button1').className="button1";
document.getElementById('button4').className="button4";
document.getElementById('button5').className="button5";
document.getElementById('button6').className="button6";
}

function Button4() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="none";
document.getElementById('block2').style.display="none";
document.getElementById('block3').style.display="none";
document.getElementById('block4').style.display="block";
document.getElementById('block5').style.display="none";
document.getElementById('block6').style.display="none";
document.getElementById('button4').className="buttonClicked4";
document.getElementById('button2').className="button2";
document.getElementById('button3').className="button3";
document.getElementById('button1').className="button1";
document.getElementById('button5').className="button5";
document.getElementById('button6').className="button6";
}

function Button5() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="none";
document.getElementById('block2').style.display="none";
document.getElementById('block3').style.display="none";
document.getElementById('block4').style.display="none";
document.getElementById('block5').style.display="block";
document.getElementById('block6').style.display="none";
document.getElementById('button5').className="buttonClicked5";
document.getElementById('button2').className="button2";
document.getElementById('button3').className="button3";
document.getElementById('button4').className="button4";
document.getElementById('button1').className="button1";
document.getElementById('button6').className="button6";
}

function Button6() {
document.getElementById('defaultblock').style.display="none";
document.getElementById('block1').style.display="none";
document.getElementById('block2').style.display="none";
document.getElementById('block3').style.display="none";
document.getElementById('block4').style.display="none";
document.getElementById('block5').style.display="none";
document.getElementById('block6').style.display="block";
document.getElementById('button6').className="buttonClicked6";
document.getElementById('button5').className="button5";
document.getElementById('button2').className="button2";
document.getElementById('button3').className="button3";
document.getElementById('button4').className="button4";
document.getElementById('button1').className="button1";
}