function show_element(which){
	document.getElementById(which).style.visibility = "visible";
}
function hide_element(which){
	document.getElementById(which).style.visibility = "hidden";
}
function switchDiv(div,modus)  {//modus: hide||show
	e = document.getElementById(div);
	e.style.visibility = "hidden";
	if (e) {
		if(!modus){
			if (e.style.visibility == "hidden") {
				modus="show";
			}else{
				modus="hide";
			}
		}
		if(modus=="show"){
			e.style.visibility = "visible";
			/* e.style.display = "block"; */ 
		}
		if(modus=="hide"){
			e.style.visibility = "hidden";
			/* e.style.display = "none"; */
		}
	}
}
function switchDivLanguage(div,modus)  {//modus: hide||show
	e = document.getElementById(div);
	if (e) {
		if(!modus){
			if (e.style.visibility == "hidden") {
				modus="show";
			}else{
				modus="hide";
			}
		}
		if(modus=="show"){
			e.style.visibility = "visible";
			/* e.style.display = "block"; */ 
		}
		if(modus=="hide"){
			e.style.visibility = "hidden";
			/* e.style.display = "none"; */
		}
	}
}
function setInvisible(div){
	e = document.getElementById(div);
	e.style.visibility = "hidden";
	/* e.style.display = "none"; */
}
function openSubNav(div){
	e = document.getElementById("nav_level_2a");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2b");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2c");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2d");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2e");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2f");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2g");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2h");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2i");
	e.style.visibility = "hidden";
	e = document.getElementById("nav_level_2j");
	e.style.visibility = "hidden";
	if(div){
		e = document.getElementById(div);
		e.style.visibility = "visible";
	}
}
function setInvisible(div){
	e = document.getElementById(div);
	e.style.visibility = "hidden";
	/* e.style.display = "none"; */
}
function switch_img(which,modus){
	if(which){
		obj = eval(which+"_"+modus);
		document.getElementById(which).src = obj.src;
	}
}
function setMainNavigation(which, modus) {
	document.getElementById("nav_1_01").src = sRelImageRoot + "nav/Navigation-level1_01_d.gif";
	document.getElementById("nav_1_02").src = sRelImageRoot + "nav/Navigation-level1_02_d.gif";
	document.getElementById("nav_1_03").src = sRelImageRoot + "nav/Navigation-level1_03_d.gif";
	document.getElementById("nav_1_04").src = sRelImageRoot + "nav/Navigation-level1_04_d.gif";
	document.getElementById("nav_1_05").src = sRelImageRoot + "nav/Navigation-level1_05_d.gif";
	document.getElementById("nav_1_06").src = sRelImageRoot + "nav/Navigation-level1_06_d.gif";
	document.getElementById("nav_1_07").src = sRelImageRoot + "nav/Navigation-level1_07_d.gif";
	document.getElementById("nav_1_08").src = sRelImageRoot + "nav/Navigation-level1_08_d.gif";
	document.getElementById("nav_1_09").src = sRelImageRoot + "nav/Navigation-level1_09_d.gif";
	document.getElementById("nav_1_10").src = sRelImageRoot + "nav/Navigation-level1_10_dn3.gif";
	document.getElementById("nav_1_11").src = sRelImageRoot + "nav/Navigation-level1_11_d.gif";

	switch_img(which,modus);
}
function getHeight(){
}

function DHTML_init() {
 if (window.opera) {
     OP = 1;
 }
 if(document.getElementById) {
   DHTML = 1;
   DOM = 1;
 }
 if(document.all && !OP) {
   DHTML = 1;
   MS = 1;
 }
if(window.netscape && window.screen && !DOM && !OP) {
   DHTML = 1;
   NS = 1;
 }
}