// javascript DHMTL - funktionen

// author: alexander stier, comfacts - cuti & stier gbr

// datum: 15.06.2001


var isNav4 = false;

var isNav6 = false;

var isGood = false;

var lastMenu = new Array(3);

var activeMenu = new Array(1);

lastMenu[0] = "";

activeMenu[0] = "";

setmenu="";

var clipTop = 0;
var clipWidth = 300;
var clipBottom = 256;
var topper = 123;
var lyrheight = 0;
var time,amount,theTime,theHeight,DHTML;



if (parseInt(navigator.appVersion) >= 4)

{

	if (navigator.appName.indexOf("Netscape") != -1 && parseInt(navigator.appVersion) >= 4 && parseInt(navigator.appVersion) < 5 ) isNav4 = true;

	if (navigator.appName.indexOf("Netscape") != -1 && parseInt(navigator.appVersion) >= 5) isNav6 = true;

	if (document.all) isGood = true;

}

if (isNav4 = true)

{

clipTop = 0;
clipWidth = 300;
clipBottom = 256;
topper = 123;
lyrheight = 0;

}

function writeStylesheet()

{

	if (document.layers) document.write("<link href=\"styles/pc_ns4x.css\" rel=\"stylesheet\" type=\"text/css\">");

	if (!document.layers) document.write("<link href=\"styles/pc_ie_ns6.css\" rel=\"stylesheet\" type=\"text/css\">");

	return;

}	


function watching()

{

  location.reload();

  window.onresize = watching;

}


function writeImage(bild,height,rest)

{

	document.write("<img src='" + bild + "' border='0' height='" + height + "' width='" + (getWidth() - rest) + "'>");

}


function writeImageHeight(bild,width,rest)

{

	document.write("<img src='" + bild + "' border='0' height='" + (getHeight() - rest) + "' width='" + width + "'>");

}



function rolloverInDiv(Div,Bild)

{

	if (setmenu != Bild)

	{

		if (isNav4)

		{

			with (document.layers[Div].document.images[Bild])

			src = (src.indexOf("aus") != -1) ? src.replace(/aus/, "an") : src.replace(/an/, "aus");

		}

		else

		{

			rollover(Bild);

		}

	}

}



function rollover(Bild)

{

	if (setmenu != Bild)

	{

		with (document.images[Bild])

		src = (src.indexOf("aus") != -1) ? src.replace(/aus/, "an") : src.replace(/an/, "aus");

	}

}


function clickreset(Bild)

{

	if (Bild != setmenu)

	{

		setmenu_help = setmenu;

		setmenu = "";

		rollover(setmenu_help);

	}

}


function getHeight()

{

	var height;

	(isGood) ? height = document.all.tags("body")[0].offsetHeight : height = window.innerHeight;

	return height;

}


function getWidth()

{

	var width;

	(isGood) ? width = document.all.tags("body")[0].offsetWidth : width = window.innerWidth;

	return width;

}

function prepLyr()
{
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('example');
	if (document.layers)
	{
		lyrheight = x.style.clip.bottom;
		lyrheight += 20;
		x.style.clip.top = clipTop;
		x.style.clip.left = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrheight = x.obj.offsetHeight;
		x.style.clip = 'rect('+clipTop+' '+clipWidth+' '+clipBottom+' 0)'
	}
}

function scrollayer(layername,amt,tim)
{
	if (!DHTML) return;
	thelayer = new getObj(layername);
	if (!thelayer) return;
	amount = amt;
	theTime = tim;
	realscroll();
}

function stopScroll()
{
	if (time) clearTimeout(time);
}

function realscroll()
{
	if (!DHTML) return;
	clipTop += amount;
	clipBottom += amount;
	topper -= amount;
	if (clipTop < 0 || clipBottom > lyrheight)
	{
		clipTop -= amount;
		clipBottom -= amount;
		topper += amount;
		return;
	}
	if (document.getElementById || document.all)
	{
		clipstring = 'rect('+clipTop+' '+clipWidth+' '+clipBottom+' 0)'
		thelayer.style.clip = clipstring;
		thelayer.style.top = topper;
	}
	else if (document.layers)
	{
		thelayer.style.clip.top = clipTop;
		thelayer.style.clip.bottom = clipBottom;
		thelayer.style.top = topper;
	}
	time = setTimeout('realscroll()',theTime);
}

function vis(val)
{
	if (!DHTML) return;
	var f = new getObj('example');
	f.style.visibility = val;
}

function getObj(name)
{
  if (document.getElementById)
  {
    this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
    this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers)
  {
   	this.obj = document.layers[name];
   	this.style = document.layers[name];
  }
}