function showsub1()
{
    document.getElementById('sub1_holder').style.display = '';
    document.getElementById('sub2_holder').style.display = 'none';
	document.getElementById('sub3_holder').style.display = 'none';
	document.getElementById('sub4_holder').style.display = 'none';
	document.getElementById('changeColor').style.color = '#8aaff6';
	document.getElementById('changeColor2').style.color = '#FFFFFF';
	document.getElementById('changeColor3').style.color = '#FFFFFF';
	document.getElementById('changeColor4').style.color = '#FFFFFF';
}

function showsub2()
{
    document.getElementById('sub1_holder').style.display = 'none';
    document.getElementById('sub2_holder').style.display = '';
	document.getElementById('sub3_holder').style.display = 'none';
	document.getElementById('sub4_holder').style.display = 'none';
	document.getElementById('changeColor').style.color = '#FFFFFF';
	document.getElementById('changeColor2').style.color = '#8aaff6';
	document.getElementById('changeColor3').style.color = '#FFFFFF';
	document.getElementById('changeColor4').style.color = '#FFFFFF';
}

function showsub3()
{
    document.getElementById('sub1_holder').style.display = 'none';
    document.getElementById('sub2_holder').style.display = 'none';
	document.getElementById('sub3_holder').style.display = '';
	document.getElementById('sub4_holder').style.display = 'none';
	document.getElementById('changeColor').style.color = '#FFFFFF';
	document.getElementById('changeColor2').style.color = '#FFFFFF';
	document.getElementById('changeColor3').style.color = '#8aaff6';
	document.getElementById('changeColor4').style.color = '#FFFFFF';
}

function showsub4()
{
    document.getElementById('sub1_holder').style.display = 'none';
    document.getElementById('sub2_holder').style.display = 'none';
	document.getElementById('sub3_holder').style.display = 'none';
	document.getElementById('sub4_holder').style.display = '';
	document.getElementById('changeColor').style.color = '#FFFFFF';
	document.getElementById('changeColor2').style.color = '#FFFFFF';
	document.getElementById('changeColor3').style.color = '#FFFFFF';
	document.getElementById('changeColor4').style.color = '#8aaff6';
}