function switchClasses( element )
{
	
	var classes = [];
	classes[1] = 'titleOne';
	classes[2] = 'titleTwo';
	classes[3] = 'titleThree';
	classes[4] = 'titleFour';
	
	for ( i = 1; i < 5; i++ )
	{
		document.getElementById('image' + i).style.display = 'none';
		document.getElementById('titleText' + i).style.display = 'none';
		document.getElementById('title' + i).className= classes[i];
	}
	
	document.getElementById('image' + element).style.display = 'block';
	document.getElementById('titleText' + element).style.display = 'block';
	document.getElementById('title' + element).className+=' activeTitle ';
	
}

function switchBackground( element )
{
	document.getElementById('title' + element ).style.backgroundPosition = '0px bottom';
}

function switchBackgroundBack( element )
{
	document.getElementById('title1').style.backgroundPosition = '0px top';
	document.getElementById('title2').style.backgroundPosition = '0px 1px';
	document.getElementById('title3').style.backgroundPosition = '0px 1px';
	document.getElementById('title4').style.backgroundPosition = '0px 1px';
}