var X,Y;
 var W,H;
 var BH = 636;
 var BW = 785;
 var browser;
 var bildX = Array;
 var bildY = Array;
 var typ ="I";
 var x1,y1;
 var x2,y2;
 var ys,ysd,ysz;

 function setStorch1()
 {
   var x=bildX[0];
   var y;
//   ysz = ysz -1;
   if (ysz == 0)
   {
     ysd = ys + (Math.random() * 6 - 3);
     ysz = 20;
   }
   y = ys +ysd;
   if ((y > Y+BH - 150)|| (y < Y + 20)) {ysd = -ysd;}
   x = x - 3;
   if (x < X-30) {x = X+BW-140;}
   bildX[0] = x;
   document.getElementById("storch1").style.visibility="visible";
   document.getElementById("storch1").style.left = x;
   document.getElementById("storch1").style.top = y;
   ys = y;
   setTimeout("setStorch1()", 50);
 }

 function setHase2()
 {
   var x=bildX[1];
   x = x - 3;
   if (x < X-40) {x = X+BW-140;}
   bildX[1] = x;
   document.getElementById("hase2").style.visibility="visible";
   document.getElementById("hase2").style.left = x;
   document.getElementById("hase2").style.top = Y+325;
   setTimeout("setHase2()", 40);
 }

 function setSchaf1()
 {
   var x=bildX[2];
   x = x + 3;
   if (x > X+BW-140) {x = X+5;}
   bildX[2] = x;
   document.getElementById("schaf1").style.visibility="visible";
   document.getElementById("schaf1").style.left = x-20;
   document.getElementById("schaf1").style.top = Y+380;
   setTimeout("setSchaf1()", 80);
 }

 function setFalter1()
 {
   var x = x1 + (Math.random() * 6 - 3);
   var y = y1 + (Math.random() * 6 - 3.1);
   //alert(x+' / '+y);
   if (x < X-30) {x = X+BW-140;}
   if (y < Y+30) {y = Y+BH-110;}
   if (x > X+BH-110) {x = X -30;}
   if (y > X+BW-140) {y = Y +30;}
   document.getElementById("falter1").style.left = x;
   document.getElementById("falter1").style.top = y;
   y1 = y;
   x1 = x;
   setTimeout("setFalter1()", 150);
 }

 function setFalter2()
 {
 //return;
   var x=x2 + (Math.random() * 6 - 3);
   var y=y2 + (Math.random() * 6 - 3.1);
   if (x < X+40) {x = X+BW-130;}
   if (y < Y+30) {y = Y+BH-110;}
   if (x > X+BH-10) {x = X+BH-100;}
   if (y > X+BW-40) {y = Y+BW-100;}
   document.getElementById("falter2").style.left = x;
   document.getElementById("falter2").style.top = y;
   y2 = y;
   x2 = x;
   setTimeout("setFalter2()", 450);
 }

 function setFalter3()
 {
 //return;
   var x=x3 + (Math.random() * 6 - 3.1);
   var y=y3 + (Math.random() * 6 - 3);
   if (x < X+30) {x = X+BW-140;}
   if (y < Y+30) {y = Y+BH-110;}
   if (x > X+BH-10) {x = X+BH-100;}
   if (y > X+BW-40) {y = Y+BW-100;}
   document.getElementById("falter3").style.left = x;
   document.getElementById("falter3").style.top = y;
   y3 = y;
   x3 = x;
   setTimeout("setFalter3()", 350);
 }

 function initBilder()
 {
  bildX[0] = X+BW-140;
  document.getElementById("storch1").style.left = bildX[0];
  document.getElementById("storch1").style.top = Y+100;
  ys = Y+100;
  ysd=1;
  ysz = 20;
  document.getElementById("storch1").style.visibility="visible";
  setStorch1();

  bildX[1] = X+BW-140;
  document.getElementById("hase2").style.left = bildX[1];
  document.getElementById("hase2").style.top = Y+390;
  document.getElementById("hase2").style.visibility="visible";
  setHase2();
  bildX[2] = X+150;
  document.getElementById("schaf1").style.left = bildX[2];
  document.getElementById("schaf1").style.top = Y+390;
  document.getElementById("schaf1").style.visibility="visible";
  setSchaf1();
  x1 = X+160;
  y1 = Y+200;
  document.getElementById("falter1").style.left = x1;
  document.getElementById("falter1").style.top = y1;
  document.getElementById("falter1").style.visibility="visible";
  setFalter1();
  x2 = X+420;
  y2 = Y+275;
  document.getElementById("falter2").style.left = x2;
  document.getElementById("falter2").style.top = y2;
  document.getElementById("falter2").style.visibility="visible";
  setFalter2();
  x3 = X+320;
  y3 = Y+80;
  document.getElementById("falter3").style.left = x3;
  document.getElementById("falter3").style.top = y3;
  document.getElementById("falter3").style.visibility="visible";
  setFalter3();
}


 function getWindowDims()
 {
 document.getElementById("bild").style.visibility = "hidden";
 document.getElementById("rahmen").style.visibility = "hidden";
  if (self.innerHeight) // all except Explorer
  {
	  W = self.innerWidth;
  	  H = self.innerHeight;
  	  typ = 'N';
  }
  else if (document.documentElement && document.documentElement.clientHeight)
	  // Explorer 6 Strict Mode
  {
	  W = document.documentElement.clientWidth;
  	  H = document.documentElement.clientHeight;
  }
  else if (document.body) // other Explorers
  {
      W = document.body.clientWidth;
      H = document.body.clientHeight;
  }
  X = (W - BW)/2;
  Y = (H - BH)/2;
  if (X < 20) {X = 25;}
  if (Y < 20) {Y = 25;}
  document.getElementById("bild").style.left = X;
  document.getElementById("bild").style.top = Y;
  document.getElementById("rahmen").style.left = X;
  document.getElementById("rahmen").style.top = Y;
  document.getElementById("bild").style.visibility = "visible";
  document.getElementById("rahmen").style.visibility = "visible";

 }