//----------------------------------------------------------------------------------
//Allgemein
// Ein- und Ausblenden einer ausgewaehlten Ebene ("layer"):
//Veraendern des Open/Close-Image
function show_box_img(VAR_URL,layer){
	
 	if(document.getElementById(layer+'_box').style.display == 'none')
 		{
	document.getElementById(layer+'_box').style.display = 'block';
	document.getElementById(layer+'_img').src = VAR_URL+'/images/icon_close.gif'; 
  		}
 	else
 		{
	document.getElementById(layer+'_box').style.display = 'none';
	document.getElementById(layer+'_img').src = VAR_URL+'/images/icon_open.gif'; 
  		}
}


//---------------------------------------------------
//allgemeine Funktionen
//auslesen von SELECT-Feldern
function selectWert(sObj) {
    with (sObj) return options[selectedIndex].value;
  }