var?timer=null;
var?alpha=30;
function?startMove(iTarget){
	var?oDiv=document.getElementById('div1');
	clearInterval(timer);
	timer=setInterval(function(){
		var?speed=0;
		if(alpha>iTarget){
			speed=-10;
		}
		else{
			speed=10;
		}
		if(alpha==iTarget){
???????????clearInterval(timer);
		}
		else{
???????????alpha+=speed;
???????????oDiv.style.filter='alpha(opacity:'+alpha+')';
???????????oDiv.style.opacity=alpha/100;
		}
	},30)
}