if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth-16;
  winH = window.innerHeight-16;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth-20;
  winH = document.body.offsetHeight-20;
  libinit();
 }
}

var objSeepferd = null;
var krebsX=780;
var krebsY=420;
var krebsY=winH-10;
var krebs_dX=1;
var krebs_dY=0;

var seepferdX=40;
var seepferdY=600;
var seepferdY=winH-60;
var seepferd_dX=1;
var seepferd_dY=-0.3;
var seepferdSinus=0;
var seepferdSinus_d=1;

// document.writeln('<div id="krebs"><img src="images/fische/krebs.gif" width="42" height="39"></div>');
// document.writeln('<div id="flasche"><img src="images/fische/flasche.gif" width="32" height="35"></div>');
document.writeln('<div id="seepferd"><img src="images/fische/seepferd.gif" width="46" height="56"></div>');
document.writeln('<div id="fisch" style="position:absolute; left:10px; top:383px; width:91px; height:68px; z-index:3"><img src="images/fische/fisch_gross.gif" width="81" height="50"></div>');
document.writeln('<div id="fisch_klein" style="position:absolute; left:790px; top:200px; width:50px; height:38px; z-index:3"><img src="images/fische/fisch_klein.gif" width="44" height="32"></div>');
document.writeln('<div id="blasen" style="position:absolute; left:15px; top:287px; width:87px; height:89px; z-index:4"><img src="images/fische/fisch_gross_blasen.gif" width="81" height="90"></div>');
document.writeln('<div id="muschel2" style="position:absolute; left:780px; top:387px; width:25px; height:25px; z-index:4"><img src="images/fische/muschel2.gif" width="20" height="19"></div>');
document.writeln('<div id="sonne" style="position:absolute; left:729px; top:1px; width:227px; height:128px; z-index:0"><img src="images/fische/sonne.gif" width="218" height="121"></div>');


function libinit(){
	// page=new lib_doc_size()
	// objKrebs=new lib_obj('krebs')
	objSeepferd=new lib_obj('seepferd')
}

function getDetails(obj){
	str="x: " + obj.x + "\n"
	str+="y: " + obj.y + "\n"
	str+="w: " + obj.w + "\n"
	str+="h: " + obj.h + "\n"
	str+="ct: " + obj.ct + "\n"
	str+="cr: " + obj.cr + "\n"
	str+="cb: " + obj.cb + "\n"
	str+="cl: " + obj.cl + "\n"
  alert(str)
}

function getSinus(angle){
	return Math.sin((angle/360)* 2 * Math.PI);
}



/*
function moveKrebs() {
	krebsX+=krebs_dX;
	krebsY+=krebs_dY;

	if (krebsX < 762 || krebsX > 900) krebs_dX = -krebs_dX;	
	if (krebsY < 380 || krebsY > 470) krebs_dY = -krebs_dY;		
	
	objKrebs.moveIt(krebsX,krebsY);
}

*/

function moveSeepferd() {
	objSeepferd.moveIt(seepferdX,seepferdY);
	seepferdX+=seepferd_dX;
	seepferdY+=seepferd_dY;
	if (seepferdY < 350 || seepferdY > winH-50) seepferd_dY = -seepferd_dY
		
	seepferdSinus+=seepferdSinus_d;
	if (seepferdSinus >= 90 || seepferdSinus <= -90) seepferdSinus_d = -seepferdSinus_d;
	seepferdX = 40+35*getSinus(seepferdSinus);
}

// krebsAniTimer = window.setInterval("moveKrebs()",160); //wert in millisekunden
seepferdAniTimer = window.setInterval("moveSeepferd()",20); //wert in millisekunden