//检测字符串长度
function strlength(s1,minsize,maxsize)
{
	if (minsize == Number.MAX_VALUE){minsize = 0;}
	var len = s1.length;
	if ((len < minsize) || (len > maxsize ))
	{return true;}
	else
	{return false;}
}
function checkspace(checkstr) {
	var str = '';
	for(i = 0; i < checkstr.length; i++) {
		str = str + ' ';
	}
	return (str == checkstr);
}
function checktel(str) 
{
	var regu = "^0[0-9]{2,3}[\-][0-9]{7,8}$";
	var re = new RegExp(regu);
	if (re.test(str)){return true;}
	regu = "^1[0-9]{10}$";
	re = new RegExp(regu);
	if (re.test(str)){return true;}
	return false;
}
function check_page_tel(fmobj) 
{
if (checkspace(fmobj.tel.value)){alert("请输入电话！");fmobj.tel.focus();return false;}
if (!checktel(fmobj.tel.value)){alert("电话号码格式不正确！\n参考格式：010-12345678/13012345678");fmobj.tel.focus();return false;}
return true; 
}

function check_page_tel2(fmobj) 
{
if (checkspace(fmobj.tel2.value)){alert("请输入电话！");fmobj.tel2.focus();return false;}
if (!checktel(fmobj.tel2.value)){alert("电话号码格式不正确！\n参考格式：010-12345678/13012345678");fmobj.tel2.focus();return false;}
return true; 
}


function check_page() 
{ 
	var fmobj=document.form1;
	
	if (fmobj.content.value==""){alert("请输入评论内容！");fmobj.content.focus();return false;}
	if (strlength(fmobj.content.value,0,400)){alert("评论内容应在200个字符以内！");fmobj.content.focus();return false;}
	if (fmobj.randnum.value==""){alert("请输入验证码！");fmobj.randnum.focus();return false;}

	
	fmobj.submit();
}

function check_stock(fmobj) 
{ 
	
	if (fmobj.code.value==""){alert("请输入股票代码！");fmobj.code.focus();return false;}
	fmobj.submit();
}

function check_news(fmobj) 
{ 
	
	if (fmobj.word.value==""){alert("请输入资讯关键词！");fmobj.word.focus();return false;}
	fmobj.submit();
}


function check_form() 
{ 
	var fmobj=document.form2;
	
	if (fmobj.content.value==""){alert("请输入评论内容！");fmobj.content.focus();return false;}
	if (strlength(fmobj.content.value,0,400)){alert("评论内容应在200个字符以内！");fmobj.content.focus();return false;}
	if (fmobj.randnum.value==""){alert("请输入验证码！");fmobj.randnum.focus();return false;}
	
	fmobj.content.value=document.getElementById('content_old').innerHTML.replace("<BR>","\n")+"\n"+fmobj.content.value;
	fmobj.submit();
}
function check_haveuser() 
{ 
	var fmobj=document.form2;
	
	if (fmobj.content.value==""){alert("请输入评论内容！");fmobj.content.focus();return false;}
	if (strlength(fmobj.content.value,0,400)){alert("评论内容应在200个字符以内！");fmobj.content.focus();return false;}
	if (fmobj.randnum.value==""){alert("请输入验证码！");fmobj.randnum.focus();return false;}
	if (fmobj.uid.checked==false){alert("请您先登陆！");fmobj.username1.focus();return false;}
	fmobj.content.value=document.getElementById('content_old').innerHTML.replace("<BR>","\n")+"\n"+fmobj.content.value;
	fmobj.submit();
}
function check_userform() 
{ 
	var fmobj=document.form2;
	
	if (fmobj.username1.value==""){alert("请输入用户名！");fmobj.username1.focus();return false;}
	if (fmobj.password1.value==""){alert("请输入密码！");fmobj.password1.focus();return false;}
	
	fmobj.action='/check_landing.php?action=login';
	fmobj.method='post';
	fmobj.submit();
}

function answer(id) 
{ 
	var id;
	document.getElementById('content_old').innerHTML=document.getElementById(id).innerHTML;
		
}

//变换验证码
function changeimage(){ 
	var pic=document.getElementById('randimage'); 
	var img=pic.src+'?'+new Date; 
	pic.src=img; 
}
function check_search() 
				{ 
					var fmobj=document.form1;
					if (fmobj.word.value==""){alert("请输入搜索关键词！");fmobj.word.focus();return false;}
				/*	if (fmobj.range.value==2){
						fmobj.action="http://www.baidu.com/baidu";
					}else{
						fmobj.action="search.php";
					}	*/
					fmobj.action="search.php";
					fmobj.submit();
				}
//-->
//登陆框的非空验证
function check_login()
		{
		var fmobj=document.login;
		if (fmobj.username.value==""){alert("请输入用户名!");fmobj.username.focus();return false;}
		if (fmobj.password.value==""){alert("请输入密码!");fmobj.password.focus();return false;}
		return true;
		}