function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_changeButton1() {
	document.getElementById("tabID1").className = "tab1active";
	document.getElementById("tabID2").className = "tabOFF";
	document.getElementById("tabID3").className = "tabOFF";
	document.getElementById("tabID4").className = "tabOFF";
} 

function MM_changeButton2() {
	document.getElementById("tabID1").className = "tabOFF";
	document.getElementById("tabID2").className = "tab2active";
	document.getElementById("tabID3").className = "tabOFF";
	document.getElementById("tabID4").className = "tabOFF";
}

function MM_changeButton3() {
	document.getElementById("tabID1").className = "tabOFF";
	document.getElementById("tabID2").className = "tabOFF";
	document.getElementById("tabID3").className = "tab3active";
	document.getElementById("tabID4").className = "tabOFF";
}

function MM_changeButton4() {
	document.getElementById("tabID1").className = "tabOFF";
	document.getElementById("tabID2").className = "tabOFF";
	document.getElementById("tabID3").className = "tabOFF";
	document.getElementById("tabID4").className = "tab4active";
}

function change_color (id, klasse) {
	document.getElementById(id).className = klasse;
}
	
function setback_color (id,klasse) {
	document.getElementById(id).className = klasse;
}