//用户名验证
function CheckUserName(val,min,max){
	var len = val.value.length;
	if (len<min || len>max){
		alert("用户名长度不正确，应为"+min+"-"+max+"个英文字母、数字。");
		val.focus();
		val.select();	
		return false;
	}
	return true;
}
//验证密码
function CheckPassWord(val,min,max){
	var len = val.value.length;
	if (len<min || len>max){
		alert("密码长度不正确，应为"+min+"-"+max+"个英文字母、数字。");
		val.focus();
		val.select();	
		return false;
	}
	return true;
}
//用户登录验证
function formsubmit(){
	if (!CheckUserName(document.formSignUp.userAccount,4,20))
		return false;
	if (!CheckPassWord(document.formSignUp.password,4,20))
		return false;
	}
function formsubmitbbs(){
	if (!CheckUserName(document.formSignUp.UserName,4,20))
		return false;
	if (!CheckPassWord(document.formSignUp.password,4,20))
		return false;
	}
//列表颜色随鼠标移动而变化
function list_CCA(CB){
	CB.className = 'list_content_odd01';
	}
function list_CCB(CB)
	{		
	CB.className = 'list_content_even01';
}
//showPageDialog,弹出列表
var newWindow = null
function Page_middle_list(surl)
{
	if (! newWindow || newWindow.closed)
	{
	newWindow=window.open(surl,"_blank","top="+(window.screen.height/2-180)+",left="+(window.screen.width/2-220)+",toolbar=no,alwaysRaised=yes,status=no,resizable=no,scrollbars=yes,height=360,width=440,dependent=true");
	}else
	{
		newWindow.focus();
	}
}
//showPageDialog,弹出列表
var newWindow = null
function Page_Select_list(surl)
{
	if (! newWindow || newWindow.closed)
	{
	newWindow=window.open(surl,"_blank","top=0,left=0,toolbar=no,alwaysRaised=yes,status=yes,resizable=no,scrollbars=yes,height=480,width=500,dependent=true");
	}else
	{
		newWindow.focus();
	}
}
//showDialog,弹出列表
function Dialog_Page(surl,widht,height)
{
	retvalue=showModalDialog(surl,window,"help:no;dialogWidth:"+widht+"px;dialogHeight:"+height+"px;center:true");
}
//复选框全选
function AllChecked(theForm)
{
	var undefined;
	var i;
	var max = theForm.chk.length;
	if (max==undefined)
		return true;
	for (i=0;i<max;i++)
	{
		theForm.chk[i].checked=true;
	}
}
//删除所选内容
function del1(){
if (confirm("是否要彻底删除?") )
{
return true;
}
else
{
return false;
}
}
//邮件订阅
function trim(str){
	  while (str !="" && str.charAt(0) == " ") str = str.substring(1,str.length);
	  while (str !="" && str.charAt(str.length-1) == " ") str = str.substring(0,str.length-1);
	  return str;
	}
function mail_null(){
	if (trim(document.FormMail.MailAddress.value)==""){
			window.alert("请输入【您的邮箱】");
			document.FormMail.MailAddress.focus();
			return false;
		}
		if (FormMail.MailAddress.value.indexOf('@',0) == 0 || FormMail.MailAddress.value.indexOf('@',0) == FormMail.MailAddress.value.length-1 || FormMail.MailAddress.value.indexOf('@',0) == -1 || FormMail.MailAddress.value == "" || FormMail.MailAddress.value.indexOf('.',0) == -1 || FormMail.MailAddress.value.indexOf('.',0) == 0 || FormMail.MailAddress.value.indexOf('.',0) == FormMail.MailAddress.value.length-1){
            window.alert("【您的邮箱】填写格式不正确");
		    document.FormMail.MailAddress.focus();
            return false;
       }
		if (document.FormMail.MailAddress.value.length>25){
			window.alert("【您的邮箱】过长，请使用易于记忆的邮件地址");
			document.FormMail.MailAddress.focus();
			return false;
		}
		if (trim(document.FormMail.MailUserName.value)==""){
			window.alert("请输入【您的姓名】");
			document.FormMail.MailUserName.focus();
			return false;
		}
		if (document.FormMail.MailUserName.value.length>5){
			window.alert("【您的姓名】请保持在5个字以内");
			document.FormMail.MailUserName.focus();
			return false;
		}
		return true;
	}