// JavaScript Document
docgE=document.getElementById;

function produkt_opentree(branchname){
	document.getElementById(branchname+"_box").style.display=((document.getElementById(branchname+"_box").style.display=='none')?'':'none');
	document.getElementById(branchname).src=((document.getElementById(branchname+"_box").style.display=='none')?'images/kat_plus.gif':'images/kat_minus.gif');
}