$(document).ready(function() {
	$("#username").focus(function() {
		hiddenTip("name");
	});
    $("#password").focus(function() {
    	hiddenTip("pwd");
    });
});
function checkFormlogin() {
	ckUsername();
	ckPassword();
	
	if ($("#err_name").html() == "true" && $("#err_pwd").html() == "true") {
		addAction();
		$.cookie("odu", $("#username").val());
		$.cookie("odp", $("password").val());
		return true;
	}
	return false;
}

function addAction() {
	var domain= window.location.href.split("/")[2] ;
	document.getElementById("form_login").action = ($("#ssllogin").attr("checked") == true ? 'https' : 'http') + '://'+domain+'/enter';
}

function ckUsername() {
		var name = trim($("#username").val());
		if (isNull(name)) {
			showWrongTip("name", "用户名不能为空");
		} else {
			showRightTip("name");
		}
}

function ckPassword() {
		var pwd = trim($("#password").val());
		var username = trim($("#username").val());
		if (isNull(pwd)) {
			showWrongTip("pwd", "密码不能为空");
		} else {
	    	showRightTip("pwd");
	    }
}


function showWrongTip(type, msg) {
	$("#img_" + type).removeClass();
	$("#img_" + type).addClass("r_wrong");
	$("#err_" + type).css("display", "");
	$("#err_" + type).html(msg);
}

function showRightTip(type) {
	//$("#img_" + type).addClass("r_right");
	$("#err_" + type).html("true");
	$("#err_" + type).css("display", "none");
}

function hiddenTip(type) {
	$("#img_" + type).removeClass();
	$("#img_" + type).addClass("r");
	$("#err_" + type).css("display", "none");
}
jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};