function showCategories() {
	document.getElementById("categoryList").style.visibility="visible";
}
function hideCategories() {
//	document.getElementById("categoryList").style.visibility="hidden";
}

function formatImg(img) {
	//alert("before: "+img.width+"."+img.height);
	if (img.width > 180) {
		img.width=180;
	}

	if (img.height > 180) {
		img.height=180;
	}

//	img.style.position = "relative";
	img.style.marginLeft = (180-img.width)/2 + "px";
	img.style.marginTop = (180-img.height)/2 + "px";
	//alert("after: "+img.width+"."+img.height);
}

function formatFullImg(img) {
	if (img.width > 810) {
		img.width=810;
	}

	if (img.height > 600) {
		img.height=600;
	}

	img.style.marginLeft = (810-img.width)/2 + "px";
	img.style.marginTop = (600-img.height)/2 + "px";

}

function times(){
calendar = new Date();
day = calendar.getDay();
month = calendar.getMonth();
date = calendar.getDate();
year = calendar.getYear();
/*
if (year< 100) year = 1900 + year;
cent = parseInt(year/100);
g = year % 19;
k = parseInt((cent - 17)/25);
i = (cent - parseInt(cent/4) - parseInt((cent - k)/3) + 19*g + 15) % 30;
i = i - parseInt(i/28)*(1 - parseInt(i/28)*parseInt(29/(i+1))*parseInt((21-g)/11));
j = (year + parseInt(year/4) + i + 2 - cent + parseInt(cent/4)) % 7;
l = i - j;
emonth = 3 + parseInt((l + 40)/44);
edate = l + 28 - 31*parseInt((emonth/4));
emonth--;
var dayname = new Array ("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
var monthname = 
new Array ("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月" );
document.write("<font color=000000>"+year +"年");
document.write(monthname[month]);
document.write(date + "日");
//document.write("<font color=000000>Tuesday, 2008-5-20</font>");
//document.write(dayname[day]+" "+"</font>");
*/
var dayname = new Array ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
document.write(dayname[day] +", "+(month+1)+"/"+date+"/"+year);
}