function toggle(id)
{
	if(document.getElementById(id+"_1").style.display == "")
	{
		document.getElementById(id+"_1").style.display = "none";
		document.getElementById(id+"_2").style.display = "none";
		document.getElementById(id+"_bild").src = "/gfx/style/gfx/plus.gif";
	}	
	else
	{
		document.getElementById(id+"_1").style.display = "";
		document.getElementById(id+"_2").style.display = "";
		document.getElementById(id+"_bild").src = "/gfx/style/gfx/minus.gif";
	}
}