function switchLinkClass(div)
{	
	document.getElementById('info_box_0_link').className = 'top_left_link';	
	document.getElementById('info_box_1_link').className = 'top_left_link';	
	document.getElementById('info_box_2_link').className = 'top_left_link';	
	document.getElementById('info_box_3_link').className = 'top_left_link';	
	document.getElementById('info_box_4_link').className = 'top_left_link';	
	document.getElementById(div).className = 'top_left_link_active';	
}

function switchStarterClass(div)
{	
	document.getElementById(div).className = 'infobox_starter_active';	
}

function setOpacity(id)
{
	document.getElementById(id).style.filter = 'Alpha(opacity=70)';	
}