function IsDigitnum(){return ((event.keyCode >= 48) && (event.keyCode <= 57));}
function IsDigittel(){return (((event.keyCode >= 48) && (event.keyCode <= 57))|| (event.keyCode == 45));}
function isdateandtime(){return (((event.keyCode >= 48) && (event.keyCode <= 58)) || event.keyCode==32 || event.keyCode==45);}
function getobj(obj){return document.getElementById(obj);}

function mlogincheck(obj,code){
if (obj.username.value ==""){alert("请输入用户名！");obj.username.focus();return false;}
if (obj.pass.value ==""){alert("请输入密码！");obj.pass.focus();return false;}
if (code=1 &&obj.checkcode.value ==""){alert("请输入验证码！");obj.checkcode.focus();return false;}
return true;
}

function limitChars(id,count){
var obj = document.getElementById(id);
if (obj.value.length > count){obj.value = obj.value.substr(0, count);}
}

function mcard(id,ids){
for(var idk=1;idk<=ids;idk++)
{if(idk==id) {getobj("cont"+idk).style.display='';getobj("card"+idk).className='choice';}
 else {getobj("cont"+idk).style.display='none';getobj("card"+idk).className='';}
}
}

function commentaddcheck(){
if (formcomment.content.value ==""){alert("请输入评论内容！");formcomment.content.focus();return false;}
if (formcomment.content.value.length<8){alert("请输入正确的评论内容！");formcomment.content.focus();return false;}
if (formcomment.title.value ==""){alert("请输入评论标题！");formcomment.title.focus();return false;}
if (formcomment.title.value.length<2){alert("请输入正确的评论标题！");formcomment.title.focus();return false;}
if (formcomment.username.value ==""){alert("请输入您的姓名！");formcomment.username.focus();return false;}
if (formcomment.username.value.length<2){alert("请输入正确的姓名！");formcomment.username.focus();return false;}
if (formcomment.tel.value.length>0 && formcomment.tel.value.length<5){alert("请输入正确的联系方式！");formcomment.tel.focus();return false;}
return true;
}

function guestbookaddcheck(){
if (formgueadd.checkcode.value ==""){alert("请输入验证码！");formgueadd.checkcode.focus();return false;}
if (formgueadd.username.value ==""){alert("请输入您的昵称！");formgueadd.username.focus();return false;}
if (formgueadd.title.value ==""){alert("请输入留言标题！");formgueadd.title.focus();return false;}
if (formgueadd.content.value ==""){alert("请输入留言内容！");formgueadd.content.focus();return false;}
if (formgueadd.content.value.length<10){alert("请输入正确的留言内容！");formgueadd.content.focus();return false;}
return true;
}

function checkproorder(){
if (formproorder.contitle.value==""){alert("请输入您要订购的产品名称");formproorder.contitle.focus();return false;}
if (formproorder.neednum.value==""){alert("请输入您要订购的产品数量");formproorder.neednum.focus();return false;}
if (formproorder.needtime.value==""){alert("请输入您需要产品的时间");formproorder.needtime.focus();return false;}
if (formproorder.truename.value==""){alert("请输入您的真实姓名");formproorder.truename.focus();return false;}
if (formproorder.tel.value==""){alert("请输入您的联系电话");formproorder.tel.focus();return false;}
if (formproorder.address.value==""){alert("请输入您的通讯地址");formproorder.address.focus();return false;}
return true;
}

function checkmacorder(){
if (formproorder.mactype4.value==""){alert("请选择您要订购的产品");return false;}
//if (formproorder.contitle.value==""){alert("请输入您要订购的产品名称");formproorder.contitle.focus();return false;}
if (formproorder.neednum.value==""){alert("请输入您要订购的产品数量");formproorder.neednum.focus();return false;}
if (formproorder.needtime.value==""){alert("请输入您需要产品的时间");formproorder.needtime.focus();return false;}
if (formproorder.truename.value==""){alert("请输入您的真实姓名");formproorder.truename.focus();return false;}
if (formproorder.tel.value=="" && formproorder.mobile.value==""){alert("请输入您的座机号码或手机号码");formproorder.tel.focus();return false;}
if (formproorder.tel.value.length>0 && formproorder.tel.value.length<7){alert("您输入的座机号码不正确，请检查");formproorder.tel.focus();return false;}
if (formproorder.mobile.value.length>0 && formproorder.mobile.value.length<11){alert("您输入的手机号码不正确，请检查");formproorder.mobile.focus();return false;}
if(formproorder.email.value.length!=0){if(!checkemailstr(formproorder.email.value)){alert('您输入的电子邮箱格式不正确！');formproorder.email.focus();return false;}}
//else{alert('请输入您的电子信箱！');formproorder.email.focus();return false;}
if (formproorder.address.value==""){alert("请输入您的通讯地址");formproorder.address.focus();return false;}
return true;
}
function checkemailstr(str){
  if (str.charAt(0)=='.' ||  str.charAt(0)=='@'||  str.indexOf('@', 0) == -1 || str.indexOf('.', 0) == -1 || str.lastIndexOf('@')==str.length-1 || str.lastIndexOf('.')==str.length-1) return false;
  return true;
}
function checkjobcandi(form){
if (form.name.value==""){alert("请输入您的姓名！");form.name.focus();return false;}
if (form.birth.value==""){alert("请选择您的出生日期！");form.birth.focus();return false;}
if (form.sex.value==""){alert("请选择您的性别！");form.sex.focus();return false;}
if (form.college.value==""){alert("请输入您的毕业院校！");form.college.focus();return false;}
if (form.education.value==""){alert("请输入您的最高学历！");form.education.focus();return false;}
if (form.professional.value==""){alert("请输入您的毕业专业！");form.professional.focus();return false;}
if (form.graduationtime.value==""){alert("请输入您的毕业时间！");form.graduationtime.focus();return false;}
if (form.tel.value==""){alert("请输入您的联系电话！");form.tel.focus();return false;}
if (form.tel.value.length<8){alert("请输入正确的联系电话！");form.tel.focus();return false;}
if(form.email.value.length!=0){if(!checkemailstr(form.email.value)){alert('您输入的电子邮箱格式不正确！');form.email.focus();return false;}}
else{alert('请输入您的电子信箱！');form.email.focus();return false;}
if (form.address.value==""){alert("请输入您的通讯地址！");form.address.focus();return false;}
if (form.postcode.value.length<6 && form.postcode.value.length>0){alert("请输入正确的邮政编码！");form.postcode.focus();return false;}
if (form.skills.value==""){alert("请输入您的职业技能！");form.skills.focus();return false;}
if (form.skills.value.length<50){alert("请输入正确的职业技能内容！");form.skills.focus();return false;}
if (form.intro.value==""){alert("请输入您的个人简介！");form.intro.focus();return false;}
if (form.intro.value.length<50){alert("请输入正确的个人简介内容！");form.intro.focus();return false;}
return true;
}

function regruleshow(n)
{if(n==0){formrule.firstcheck.disabled=""}else{n--;formrule.firstcheck.value="我已经仔细阅读并遵守以上协议，继续下一步("+n+")";setTimeout("regruleshow("+n+")",1000)}}