function reg_change(register)
{

	var reg_content = register + '_content';
		
	// Register aus- und gewählte einblenden
	document.getElementById('register_neueste').setAttribute("class","teaserbox_title_register_inactive");
	document.getElementById('register_empfehlungen').setAttribute("class","teaserbox_title_register_inactive");
	document.getElementById('register_meistgelesene').setAttribute("class","teaserbox_title_register_inactive");
	document.getElementById(register).setAttribute("class","teaserbox_title_register_active");

	// for IE7
	document.getElementById('register_neueste').setAttribute("className","teaserbox_title_register_inactive");
	document.getElementById('register_empfehlungen').setAttribute("className","teaserbox_title_register_inactive");
	document.getElementById('register_meistgelesene').setAttribute("className","teaserbox_title_register_inactive");
	document.getElementById(register).setAttribute("className","teaserbox_title_register_active");

	reg_fade_content(reg_content)	
}

function reg_show_content(reg_content)
{
	// Content aus- und gewählten einblenden
	document.getElementById('register_neueste_content').style.display='none';
	document.getElementById('register_empfehlungen_content').style.display='none';
	document.getElementById('register_meistgelesene_content').style.display='none';	
	document.getElementById(reg_content).style.display='';
	
}


function reg_fade_content(reg_content)
{
	// Content aus- und gewählten einblenden
	document.getElementById('register_neueste_content').style.display='none';
	document.getElementById('register_empfehlungen_content').style.display='none';
	document.getElementById('register_meistgelesene_content').style.display='none';	
	document.getElementById(reg_content).style.display='';
	document.getElementById(reg_content).style.opacity=0.0;
	document.getElementById(reg_content).style.filter="Alpha(opacity=00)";

	FadeOpacity(reg_content,0,100,500,100)	
}