function zufallszahl(grenze)
{
	zahl = 999;

	while (zahl > grenze)
	{	
		zahl = Math.ceil(Math.random() * 10);   //----- Aufrunden der Zufallszahl
	}

	return zahl;
}

window.aktPic = 0;

function changepic()
{
	//------ Autor: Thomas BŸchler
	//------ Erstellt: 01.11.04  
	//------ Kommentar: GruppenabhŠngige Bildwechselanimationen
	//------ Starbar z.B.: mit  onLoad="window.setInterval('changepic()',3000)" im body-tag

	//var imgArr = new Array("picA","picB","picC");
	var imgArr = new Array("picA");
	
	var aktNum = window.aktPic;
	var aktLim = imgArr.length-1;
	var actImg = imgArr[aktNum];
	
	if (aktNum < aktLim)
	{
		aktNum++ ;
	}
	else
	{
		aktNum = 0;
	}
	
	window.aktPic = aktNum;
	
	

	imgSrc = document.getElementById(actImg);

	var imgs = new Array();
	

	if (actImg == "picA") //----------------------------------------------------------- Menue "Gruppe1"
	{
		imgs[0] = "sicherheitskupplung_sk1.jpg";
		imgs[1] = "pic_skp.jpg";
	}
	else if (actImg == "picB") //----------------------------------------------------------- Menue "Gruppe2"
	{
		imgs[0] = "pic_b_1.jpg";
		imgs[1] = "pic_b_2.jpg";
		imgs[2] = "pic_b_3.jpg";
		imgs[3] = "pic_b_4.jpg";
	}
	else if (actImg == "picC") //----------------------------------------------------------- Menue "Gruppe3"
	{
		imgs[0] = "pic_c_1.jpg";
		imgs[1] = "pic_c_2.jpg";
		imgs[2] = "pic_c_3.jpg";
		imgs[3] = "pic_c_4.jpg";
	}
	
	var loop = imgs.length-1;
	var curImgname = imgSrc.src.substr(imgSrc.src.lastIndexOf("/")+1,imgSrc.src.length);
	
	for(var i=0; i<=loop; i++)
	{
		if(imgs[i] == curImgname && i < loop)
		{
			var newImgname = imgs[i+1];
			break;
		}
		else if (i == loop)
		{
			var newImgname = imgs[0];
			break;
		}
	}
	
	imgSrc.src = imgSrc.src.substr(0,imgSrc.src.lastIndexOf("/")+1) + newImgname;
}