function counterImg(){
	var sDT = new Date();
	var eDT = new Date("2009/03/21 10:00:00");
	ans = sDT.dateDiff("d",eDT);

	if (ans < 10){
		ans=ans.toString();
		setImg(0,0,0);	
	}else{
		ans=ans.toString();
		setImg(0,0,0);
	}
}

Date.prototype.dateDiff = function(interval,objDate){
	var dtEnd = new Date(objDate);
	if(isNaN(dtEnd)) return undefined;
		switch (interval) {
		case "s":return parseInt((dtEnd - this) / 1000);
		case "n":return parseInt((dtEnd - this) / 60000);
		case "h":return parseInt((dtEnd - this) / 3600000);
		case "d":return parseInt((dtEnd - this) / 86400000);
		case "w":return parseInt((dtEnd - this) / (86400000 * 7));
		case "m":return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-this.getFullYear())*12) - (this.getMonth()+1);
		case "y":return dtEnd.getFullYear() - this.getFullYear();
		}
}

function setImg(y,m,d){
	$("day1").src = "http://blog.iset.com.tw/palyball/wp-content/themes/playball/images/nb/n"+y+".gif";
	$("day2").src = "http://blog.iset.com.tw/palyball/wp-content/themes/playball/images/nb/n"+m+".gif";
	$("day3").src = "http://blog.iset.com.tw/palyball/wp-content/themes/playball/images/nb/n"+d+".gif";
}