function CheckForm(){
		if(login.user_name.value==""){
		alert("请输入用户名");
		login.user_name.focus();
		return false;
		}
		if(login.password.value == ""){
		alert("请输入密码");
		login.password.focus();
		return false;
		}
	return true;
	}
	function CodeCookie(str){
		var strRtn="";
		for (var i=str.length-1;i>=0;i--) 
		{
		strRtn+=str.charCodeAt(i);
		if (i) strRtn+="O";
		}
		return strRtn;
		}
	function DecodeCookie(str){
		var strArr;
		var strRtn="";
		strArr=str.split("O");
		for (var i=strArr.length-1;i>=0;i--) 
		strRtn+=String.fromCharCode(eval(strArr[i]));
	return strRtn;
	}
	var status = '';
	function checkCookie(){
	var allcookie = document.cookie.split('; ');
	//	var isautologin = false;
	var islogon = false;
	for(var i=0;i<allcookie.length;i++){
		var cookiename = allcookie[i].split('=')[0];
		if(cookiename=='mop_logon'){
			islogon = true;
		}
		if(cookiename == 'mop_status'){
			var tmpString = unescape(allcookie[i].split('=')[1]);
			status = DecodeCookie(tmpString);
		}
	}
		if(islogon == true){
		return true;
	}else{
		return false;
	}
}
	function checkAutoCookie(){
		var allcookie = document.cookie.split('; ');
		var isautologin = false;
		for(var i=0;i<allcookie.length;i++){
		var cookiename = allcookie[i].split('=')[0];
		if(cookiename=='mop_auto_login'){
			isautologin = true;
		}
	}
		if(isautologin == true){
		return true;
		}else{
		return false;
		}
} 
function getMopidFromCookie() {
	var id = 0;
	var allcookie = document.cookie.split('; ');
	for(var i=0;i<allcookie.length;i++){
		var cookiename = allcookie[i].split('=')[0];
		if(cookiename=='mop_logon'){
			var value = unescape(allcookie[i].split('=')[1]);
			var tmp = value.split("|");
			id = parseInt(tmp[0]);
		}
	}
	return id;
}