function writetime()
{
var time=new Date();                                  
month=time.getMonth()+1;                                  
day=time.getDate();                                  
year=time.getYear();                                  
var date=time.getDay();                                
document.write(year+"年");                                  
document.write(month+"月"+day+"日");                              
var week=new Array(6);                                  
week[0]="星期日";                                  
week[1]="星期一";                                  
week[2]="星期二";                                  
week[3]="星期三";                                  
week[4]="星期四";                                  
week[5]="星期五";                                  
week[6]="星期六";document.write(week[date]);
}

function CheckLogin()
{
	if(document.UserLogin.UserName.value=="")
	{
			alert("请填写您的用户名");
			UserLogin.UserName.focus();
			return false;
	}
	if(document.UserLogin.PassWord.value=="")
	{
			alert("请填写您的密码");
			UserLogin.PassWord.focus();
			return false;
	}
	var ochk = document.getElementById('checkbox');
	var oinput = document.getElementById('UserName');
	if(ochk.checked){
		//设置Cookie
		setCookie('UserName',oinput.value);
	}
}

function FocusForm()
{
		UserLogin.UserName.focus();  
}

function setCookie(key,value){
	var today = new Date();
    var expires = new Date();
    expires.setTime(today.getTime() + 1000*60*60*24*365);
	document.cookie = key + "=" + escape(value) + ";path=/"+"; expires=" + expires.toGMTString();
}

function getCookie(key){
	if (document.cookie) {
		var start = document.cookie.indexOf('' + key + '=');
		if (start == -1) { return null; }
		var end = document.cookie.indexOf(";", start);
		if (end == -1) { end = document.cookie.length; }
		end -= start;
		var cookies = document.cookie.substr(start,end);
		return unescape(cookies.substr(cookies.indexOf('=') + 1, cookies.length - cookies.indexOf('=') + 1));
	}
	else { return null; }
}