var DevilIterator = 0;
var DevilJumpIterator = 300;
var DevilTopOffset = 120;
var JumpRate =  Math.ceil(100+Math.random()*200);
var devil = document.getElementById("Devil");
setInterval("MoveDevil()", 20);
setInterval("JumpDevil()", 20);

function MoveDevil()
{
   devil.style.left = DevilIterator + "px";
   DevilIterator += 0.5;
   if(DevilIterator%JumpRate == 0) {DevilJumpIterator = 0;}
   if( parseInt(devil.style.left) > (window.screen.availWidth+120)) DevilIterator = -100;
   
}

function JumpDevil()
{
  var cosResuts = -Math.abs(Math.sin((DevilJumpIterator)/Math.PI)*( window.screen.availHeight/5));

  if(DevilJumpIterator <=10)
	{
		devil.style.top =  (DevilTopOffset + cosResuts).toString() + "px";
	}
  else devil.style.top =  DevilTopOffset + "px";
  DevilJumpIterator+=0.2;
}