function hero(){document.getElementById('image_eight').style.visibility = 'visible';}
function spow(){if(document.getElementById('image_eight').style.visibility == 'visible'){
		document.getElementById('image_seven').style.visibility = 'visible';}}
function unspow(){if(document.getElementById('image_eight').style.visibility == 'visible'){
		document.getElementById('image_seven').style.visibility = 'hidden';}}
function under(){if(document.getElementById('image_one').style.visibility == 'visible'){
		document.getElementById('image_nine').style.visibility = 'visible';}}
function show(id){if(document.getElementById('image_eight').style.visibility == 'visible'){
		var img = document.getElementById(id);img.style.visibility = 'visible';}}
function hide(id){var img = document.getElementById(id);img.style.visibility = 'hidden';}

var ko;
function knockOut(ko){
	
	if( ! ko) ko = false;
	
	if( ! ko)
	{
		document.getElementById('pow').Play();
	}
	
	ko = true;
}