function check(obj) {
var message=document.myform.message.value;
message =message.replace(/^\s+|\s+$/g,""); 
if(message.length==0) { 

	//	alert("请输入评论内容");

		document.myform.message.focus();

		return false;

	} else if(document.myform.message.value.length > 2000) { 

		alert("评论内容太长，字数不能超过2000");

		document.myform.message.focus();

		return false;

	} else {
		alert("评论发表成功！");
		return true;
        }

}

function show_hidden_div(dn)
{
	var od = document.getElementById(dn);
	if (od.style.display == "none")
	{
		od.style.display = "";
	}
	else
	{
		od.style.display = "none";
	}
}


var myDate = new Date();
var mytime= myDate.getYear()+"-"+eval(myDate.getMonth()+1)+"-"+myDate.getDate()+" "+myDate.toLocaleTimeString();

function sub()
{
    var vv=document.getElementById("message").value;
    document.getElementById("commentmsg").innerHTML = "<div class='pl grey'><span class='blue'>匿名</span>  发表时间:"+ mytime + "</div><div class='pl'>"+vv+"</div><div class='pl_line'></div>";
    document.getElementById("myform").submit();
    document.getElementById("message").value="";
}