function changeBgTo(id)
{
	if(id == "detail")
	{
		document.getElementById("kontakt").style.backgroundImage="url(../../img/backgrounds/bg_so_finden_sie_uns_detail.jpg)";
		document.getElementById("karte").style.visibility = "hidden";
		document.getElementById("karte2").style.visibility = "visible";
	}
	if(id == "overview")
	{
		document.getElementById("kontakt").style.backgroundImage="url(../../img/backgrounds/bg_so_finden_sie_uns.jpg)";
		document.getElementById("karte").style.visibility = "visible";
		document.getElementById("karte2").style.visibility = "hidden";
	}
}