var x = 0;
var y = 0;
var y2 = 0;
onload=function(){
	document.getElementById("bm0").style.backgroundPosition = "left top";
}
function smove(a){
	y2 = a * -330;
	document.getElementById("bm"+x).style.backgroundPosition = "left bottom";
	document.getElementById("bm"+a).style.backgroundPosition = "left top";
	x = a;
	setTimeout("clkset()",10);
}
function clkset(){
	if(y > y2){
		y -= 30;
	}else if(y2 > y){
		y += 30;
	}
	document.getElementById("move").style.top = y + "px";
	if(y2 != y) setTimeout("clkset()",10);
}