function trim( s ) {
	if ( s==null || s=="" ) {
		return "";
	}
	var Str = new String( s );
	var newstr = Str.replace( /^\s*/, "" );
	return ( newstr.replace(/\s*$/,"") );
}

function viewComment() {
var nodeid=0;
var nsid=0;
try{
nodeid=document.forms["myform"].nodeid.value;
nsid=document.forms["myform"].nsid.value;
}catch(e){}
	document.forms["myform"].action = "http://comments.china.com.cn/comments/servlet/DisplayComments?nodeid="+nodeid+"&nsid="+nsid;
	document.forms["myform"].submit();
}

function submitCheck() {
	if (document.forms["myform"].content.value.length > 1000) {
		alert("评论内容过长！");
		return false;
	}
	if (document.forms["myform"].content.value.indexOf("<script") != -1 || document.forms["myform"].content.value.indexOf("</") != -1) {
		alert("评论内容不能包含脚本！");
		return false;
	}
	if (trim(document.forms["myform"].content.value) == "") {
		alert("评论内容不能为空！");
		return false;
	}
	if(document.forms["myform"].isGuest.checked==false && trim(document.forms["myform"].author.value)==""){
		alert("请添写昵称！");
		return false;
	}
	alert("感谢您的回复，谢谢您对中国网的支持！");
	document.forms["myform"].submit();
	document.location.href=document.location.href;

}