function change(what,state)
{

	document.getElementById(what+"_btn").src="images/navi/"+what+"_"+state+".gif";

}

function pfeil(state,what)
{

	if(state==1)
		document.getElementById("s_n_arrow_"+what).src="images/blank_pfeil.gif";
	else
		document.getElementById("s_n_arrow_"+what).src="images/blank_1.gif";

}