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

DHTML_init();

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 Menue() {
 if(DOM) {
   if(MS)
     getElem("id","Nav1",null).style.top = document.body.scrollTop + 50;
   else
     getElem("id","Nav1",null).style.top = window.pageYOffset + 50;
 }
 if(DOM || MS) {
   if (!DOM) getElem("id","Nav1",null).style.top = document.body.scrollTop + 50;
   if (OP) getElem("id","NavLinks1",null).style.pixelTop = NavLinksPos;
   getElem("id","Nav1",null).style.visibility = "visible";
 }
 else if(NS) {
  getElem("id","Nav1",null).visibility = "show";
  getElem("id","Nav1",null).top = window.pageYOffset + 50;
 }
}

function moveNavi(){
	Menue();
//alert("DHTML ="+DHTML+", DOM ="+DOM+", MS ="+MS+", NS ="+NS+", OP ="+OP);
 	if(DOM && !MS && !OP) {
		if(window.innerHeight > 300){
			//alert("Bin ein Netscape (7)");
			window.setTimeout("moveNavi()",200);
		}
 	}
 	if(NS) {
		if(window.innerHeight > 300){
			//alert("Bin ein Netscape(4.75)");
			window.setTimeout("moveNavi()",200);
		}
 	}
 	if (DOM && OP) {
		if(window.innerHeight > 300){
			//alert("Bin ein Opera");
			window.setTimeout("moveNavi()",200);
		}
	}
 	if (MS) {
		if(document.body.offsetHeight > 300){
			//alert("Bin ein IE");
			window.setTimeout("moveNavi()",200);
		}
	}
}

function handleMove(ev) {
 if(!MS) {
   Event = ev;
   if(Event.screenY < 270)
     Menue();
   else if(Event.screenY > 420)
     noMenue();
 }
}

function MShandleMove() {
 if(MS) {
  if(window.event.clientY < 270)
    Menue();
  else if(window.event.clientY > 420)
    noMenue();
  }
}

function Event_init() {
 if(DOM && !MS && !OP) {
  getElem("tagname","body",0).addEventListener("mousemove", handleMove, true);
 }
 if(NS) {
  document.captureEvents(Event.MOUSEMOVE);
  document.onmousemove=handleMove;
 }
 if (DOM && OP) {
    document.onmousemove=handleMove;
    NavLinksPos=42; //Position des Bereiches NavLinks
    getElem("id","NavLinks1",null).style.pixelTop=NavLinksPos;

 }
 if (MS) getElem("tagname","body",0).onmousemove=MShandleMove;
}

function getStyle()
{
	var StyleSheet = "2";
	var mysheet=""
	switch(StyleSheet) {
 		case "0":
 		mysheet="<link rel='stylesheet' type='text/css' href='files/polaritystyle.css'>"; 
 		break;
 		case "1":
 		mysheet="<link rel='stylesheet' type='text/css' href='files/polaritystyle1.css'>"; 
 		break;
 		case "2":
 		mysheet="<link rel='stylesheet' type='text/css' href='files/polaritystyle2.css'>";  
 		break;
 		case "3":
 		mysheet="<link rel='stylesheet' type='text/css' href='files/polaritystyle3.css'>";  
 		break;
 		default:
 		alert("Es wurde kein Stylesheet gefunden."); break;

	}
	return mysheet;
}

function OpenLexikon(website,w,h) {
	//alert(w);
	
	if(w==null)w=550;
	if(h==null)h=150;
	
	open(website,"Lexikon","width="+w+",height="+h+",resizable=1,scrollbars=1,left=10,top=10");

}