function selectButtonInit () {
	selectButton(document.getElementById('button2'));
}

function selectButton (myButton) {
	document.getElementById('button1').style.backgroundColor = '#000000';
	document.getElementById('button2').style.backgroundColor = '#000000';
	document.getElementById('button3').style.backgroundColor = '#000000';
	document.getElementById('button4').style.backgroundColor = '#000000';
	document.getElementById('button1').style.color = '#ffffff';
	document.getElementById('button2').style.color = '#ffffff';
	document.getElementById('button3').style.color = '#ffffff';
	document.getElementById('button4').style.color = '#ffffff';
	document.getElementById('button1').name = '';
	document.getElementById('button2').name = '';
	document.getElementById('button3').name = '';
	document.getElementById('button4').name = '';
	myButton.style.backgroundColor = '#aaaadd';
	myButton.style.color = '#000000';
	myButton.name= 'selected';
}

function highlightButton (myButton) {
    if(myButton.name != 'selected'){
	  myButton.style.backgroundColor = '#555555';
    }
}

function resetButton (myButton) {
    if(myButton.name != 'selected'){
	  myButton.style.backgroundColor = '#000000';
    }
}