function $(id) {
	return document.getElementById(id);
}

function v(objName) {

	return trim($(objName).value);
}

function checkTitle(id){

	var objName = id;
	var title = v(objName);

	if (title==''){
		alert('请填写标题');
		return false;
	}

	var len=getLen(title);
	if(len > 50){
		alert('标题过长，请修改');
		return false;
	}
}

function checkContent() {

	var objName = 'content';
	var content = v(objName);

	if (content==''){
		alert('请填写评论内容');
		return false;
	}

}

function updateverifyCode() {
	
	if ($('verifyCodePic').style.display == 'none') {
		changeverifycode();
	}
}

function changeverifycode() {
	
	var s=$('verifyCodePic');
	if(s){
		s.style.display = 'none';
		s.src = 'http://submit.tieba.pchome.net/verifyCode.php?system=game&rand='+Math.random();
		s.style.display = '';
	}
}

function ajaxVerify(url) {

		var x = new Ajax('HTML');

		x.get(url, function(result) {

			if(result!=''){
				changeverifycode();
				alert(result);
			}else{
				$('comment').submit();
			}

		});

}

function checkverifyCode() {

	var objName = 'text1';
	var code = v(objName);

	var regExp = /^[0-9]{4,5}$/;
	
	if (code==''){
		alert('请填写验证码');
		return false;
	}

	if (!regExp.test(code)) {

		alert('不正确的验证码，验证码为 4-5 位的数字');
		return false;
	}

	//ajaxVerify('/js/verifyCode.php?type=check&code='+code);
	
	$('comment').submit();
}

function threadSubmit(){

	var flag=true;

	flag=checkTitle('text4');
	if(flag==false)return;

	flag=checkContent();
	if(flag==false)return;

	checkverifyCode();
}

function detailSubmit(){

	var flag=true;

	flag=checkTitle('text3');
	if(flag==false)return;

	flag=checkContent();
	if(flag==false)return;

	checkverifyCode();
}

function postSubmit(){

	var flag=true;

	flag=checkContent();
	if(flag==false)return;

	checkverifyCode();
}

function ctrlEnterSubmit(event){

	if((event.ctrlKey && event.keyCode == 13)) {
		$('button3').click();
		//threadSubmit();
		//$('comment').submit();
	}

}