var DHTML = 0, DOM = 0, MS = 0, NS = 0, OP = 0;

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

function getElem(p1,p2,p3) {
 var Elem;
 if(DOM) {
   if(p1.toLowerCase()=="id") {
     if (typeof document.getElementById(p2) == "object")
     Elem = document.getElementById(p2);
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="name") {
     if (typeof document.getElementsByName(p2) == "object")
     Elem = document.getElementsByName(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="tagname") {
     if (typeof document.getElementsByTagName(p2) == "object" ||
        (OP && typeof document.getElementsByTagName(p2) == "function"))
     Elem = document.getElementsByTagName(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
 else if(MS) {
   if(p1.toLowerCase()=="id") {
     if (typeof document.all[p2] == "object")
     Elem = document.all[p2];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="tagname") {
     if (typeof document.all.tags(p2) == "object")
     Elem = document.all.tags(p2)[p3];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="name") {
     if (typeof document[p2] == "object")
     Elem = document[p2];
     else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
 else if(NS) {
   if(p1.toLowerCase()=="id" || p1.toLowerCase()=="name") {
   if (typeof document[p2] == "object")
     Elem = document[p2];
     else Elem = void(0);
     return(Elem);
   }
   else if(p1.toLowerCase()=="index") {
    if (typeof document.layers[p2] == "object")
     Elem = document.layers[p2];
    else Elem = void(0);
     return(Elem);
   }
   else return void(0);
 }
}

function getCont(p1,p2,p3) {
   var Cont;
   if(DOM && getElem(p1,p2,p3) && getElem(p1,p2,p3).firstChild) {
     if(getElem(p1,p2,p3).firstChild.nodeType == 3)
       Cont = getElem(p1,p2,p3).firstChild.nodeValue;
     else
       Cont = "";
     return(Cont);
   }
   else if(MS && getElem(p1,p2,p3)) {
     Cont = getElem(p1,p2,p3).innerText;
     return(Cont);
   }
   else return void(0);
}

function getAttr(p1,p2,p3,p4) {
   var Attr;
   if((DOM || MS) && getElem(p1,p2,p3)) {
     Attr = getElem(p1,p2,p3).getAttribute(p4);
     return(Attr);
   }
   else if (NS && getElem(p1,p2)) {
       if (typeof getElem(p1,p2)[p3] == "object")
        Attr=getElem(p1,p2)[p3][p4]
       else
        Attr=getElem(p1,p2)[p4]
         return Attr;
       }
   else return void(0);
}

function setCont(p1,p2,p3,p4) {
   if(DOM && getElem(p1,p2,p3) && getElem(p1,p2,p3).firstChild)
     getElem(p1,p2,p3).firstChild.nodeValue = p4;
   else if(MS && getElem(p1,p2,p3))
     getElem(p1,p2,p3).innerText = p4;
   else if(NS && getElem(p1,p2,p3)) {
     getElem(p1,p2,p3).document.open();
     getElem(p1,p2,p3).document.write(p4);
     getElem(p1,p2,p3).document.close();
   }
}

function resetAllButtons() {
	for (i = 0; i < buttonList.length; i++) {
		//flip(buttonList[i],0);
		ccolor(buttonList[i],'black');
	}
}

function fullResetButtons() {
	var actLayer = "none";
	for (i = 0; i < layerList.length; i++) {
		thisimage = layerList[i];	
		var derlayer = getElem("id",thisimage,null);
		derlayer.style.color = "black";		 	
			//document[thisimage].src = eval(thisimage+'_off.src');
	}
}

// lädt die Bilder in Menuleiste und wechselt sie entsprechend
function flip(menupunkt,over) {
	if (document.images && (menupunkt != section)) {
		image = (over == 1) ? eval(menupunkt+"_on.src") : eval(menupunkt+"_off.src");
		if (menupunkt != actLayer) document[menupunkt].src = image;
	}
}

function ccolor(Name_desElement,wechsel){
	var derlayer = getElem("id",Name_desElement,null);//document.getElementById(Name_desElement);
	//derlayer.style.background = wechsel;
	if (document.images && (Name_desElement != actLayer)) {
		derlayer.style.color = wechsel;
	}
	//derlayer.style.backgroundImage = "url("+wechsel+")";
}

function getLayer(thislayer) {
	if (bOK) {
		if (document.layers) {
			layerReturn = eval('document.layers["'+thislayer+'layer"]');
		} else if (document.all) {
			if (eval('document.all["'+thislayer+'layer"]'+'.style')) 
				layerReturn = eval('document.all["'+thislayer+'layer"]'+'.style');
		} else if (document.getElementById) {
			if (document.getElementById(thislayer+'layer')) 
				layerReturn = document.getElementById(thislayer+'layer');
			layerReturn = layerReturn.style;
		}   
	}
	return layerReturn;
}

function showLayer(numshow) {
	if (bOK && layerList[numshow]) {
		showThisLayer = getLayer(layerList[numshow]);   
		if (showThisLayer) {
			actLayer = layerList[numshow];
			resetAllButtons();
			hideAllLayers();
			showThisLayer.visibility = (document.layers) ? 'show' : 'visible';
		}
	}
}
	 
function hideLayer(numhide) {
	if (bOK && layerList[numhide]) {
		hideThisLayer = getLayer(layerList[numhide]);
		if (hideThisLayer) {
			hideThisLayer.visibility = (document.layers) ? 'hide' : 'hidden';
		}
	}
}

function hideAllLayers() {
	if (bOK) {
		for (i = 0; i < layerList.length; i++) hideLayer(i);
		clearTimeout(menuTimer);
	}
}

menuTimer = setTimeout("actLayer='none',clearAll()",3000);

function clearMenus() {
	menuTimer = setTimeout("actLayer='none',clearAll()",3000);
}

function clearAll() {
	var actLayer = "none";
	hideAllLayers();
	fullResetButtons();
}	   

DHTML_init();

function laden(seite){
	parent.location.href=seite;	
}