var username = "";
var content = "";
var email = "";
$(function(){        
    $("#sub").click(function(){    
        if($("#email").length)
        {
            if($("#email").val().trim() == "")
            {
                alert("请输入Email");
                return;
            }
            else if(!chkmail($("#email").val()))
            {
                alert("Email地址不正确");
                return;
            }
        }
        
        if($("#content").val().trim() == "")
        {
            alert("请输入内容");
            return;
        }
        if($("#content").val() == content)
        {
            alert("请不要重复留言!");
            return;
        }
        content =escape($("#content").val().trim());
        var postdata = "content="+content+"&path="+topic;
        if($("#email").length) postdata +="&email="+$("#email").val();
        this.disabled = true;
        $.ajax({
            type: "post",
            dataType: "text",
            url: "/doc/message.ashx",            
            data: postdata,
            complete :function(){
                $("#sub").attr("disabled","");                    
                $("#content").val("");
                $("#email").val("");
            },
            success: function(msg){
                if(msg == "1")
                    alert("感谢您的留言!");
                else
                    alert("留言失败");
            }
        });
    });
    $("#view").click(function(){
        window.open("/doc/notelist.aspx?topic="+topic);
    });
});

String.prototype.trim= function()  
{  
    return this.replace(/(^\s*)|(\s*$)/g, "");  
}

function chkmail(mail)
{   
    var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
    if(!reg.test(mail))
    {
        return   false;   
    }
    else
    {   
        return   true;   
    }
}