var errormessage="资料不齐，请输入！"
var errormessage3="不能为空，请输入！"
var errormessage2="两次密码不一致，请重新输入！"
var errormessage4="格式不对，请重新输入！"
var myReg = /^[_\-a-z0-9]+@([_a-z0-9]+\.)+[a-z0-9]{2,3}$/i;
var myReg2 = /^[0-9]+$/;
function checkform(Theform)
{
  if(Theform.username.value=="")
  {
   alert(errormessage);
   Theform.username.focus();
   return false;
  }
  if(Theform.nickname.value=="")
  {
   alert(errormessage);
   Theform.nickname.focus();
   return false;
  }
  if(Theform.password.value=='')
  {
   alert(errormessage);
   Theform.password.focus();
   return false;
  }
  if(Theform.password.value!=Theform.password2.value)
  {
   alert(errormessage2);
   Theform.password.value='';
   Theform.password2.value='';
   Theform.password.focus();
   return false;
  }
  if(Theform.email.value=="")
  {
   alert(errormessage);
   Theform.email.focus();
   return false;
  }
   if(myReg.test(Theform.email.value)==false)
   {
    alert('电子邮件格式不对，请输入！');
	Theform.email.focus();
    return false;
   }
}

function checkform2(Theform)
{
  if(Theform.username.value=="")
  {
   alert(errormessage);
   Theform.username.focus();
   return false;
  }
  if(Theform.nickname.value=="")
  {
   alert(errormessage);
   Theform.nickname.focus();
   return false;
  }
  if(Theform.password.value!=Theform.password2.value)
  {
   alert(errormessage2);
   Theform.password.value='';
   Theform.password2.value='';
   Theform.password.focus();
   return false;
  }
  if(Theform.email.value=="")
  {
   alert(errormessage);
   Theform.email.focus();
   return false;
  }
   if(myReg.test(Theform.email.value)==false)
   {
    alert('电子邮件格式不对，请输入！');
	Theform.email.focus();
    return false;
   }
}

function checkform3(Theform)
{
  if(Theform.nickname.value=="")
  {
   alert(errormessage);
   Theform.nickname.focus();
   return false;
  }
  if(Theform.password.value!=Theform.password2.value)
  {
   alert(errormessage2);
   Theform.password.value='';
   Theform.password2.value='';
   Theform.password.focus();
   return false;
  }
  if(Theform.email.value=="")
  {
   alert(errormessage);
   Theform.email.focus();
   return false;
  }
   if(myReg.test(Theform.email.value)==false)
   {
    alert('电子邮件格式不对，请输入！');
	Theform.email.focus();
    return false;
   }
}

function checksortform()
{
   var result=checktextNULL("sortname","分类名称");
   if(result==false)
   {
   return false;
   }
}

function checknum(name,error)
{
   var textitem=eval("$('"+name+"')");
   if(myReg2.test(textitem.value)==false)
	 {
	   alert(error+errormessage4)
	   textitem.value="";
	   textitem.focus();
	   return false;
	 }
   return textitem;
}

 function checktextNULL(name,error)
 {
   var textitem=eval("$('"+name+"')");
   if(textitem.value=="")
    {
	 if(error=="")
	 {
     alert(errormessage);
	 }
	 else
	 {
	 alert(error+errormessage3)
	 }
     textitem.focus();
     return false;
    }
   else
    {
     return textitem;
    }
}