function show_sprite(name){
	var elem = document.getElementById(name);
	elem.style.height='150px';
	elem.style.marginTop = '-55px';
	var elemimg = elem.getElementsByTagName("IMG");
	elemimg[0].style.marginTop = '0px';
	
}
function hide_sprite(name)
{
	var elem=document.getElementById(name);
	elem.style.height='98px';
	elem.style.marginTop = '0px';
	var elemimg = elem.getElementsByTagName("IMG");
	elemimg[0].style.marginTop = '-153px';	
	
}