function chkemail(a){
 var reg = /[^\u0000-\u00FF]/;
 if(a.match(reg)!=null){
  return 0;
 }

 var i=a.length;
 var temp = a.indexOf('@');
 var tempd = a.indexOf('.');
 if (temp >= 1) {
  if ((i-temp) > 3){
   if ((i-tempd)>0){
    return 1;
   }
  }
 }
 return 0;
}

function fucPWDchk(str)
{
  var strSource ="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  var ch;
  var i;
  var temp;
 
  for (i=0;i<=(str.length-1);i++)
  {
 
    ch = str.charAt(i);
    temp = strSource.indexOf(ch);
    if (temp==-1)
    {
     return 0;
    }
  }
  if (strSource.indexOf(ch)==-1)
  {
    return 0;
  }
  else
  {
    return 1;
  }
}

function CheckForm()
{
if(document.form1.ordernumber.value=="")
{
alert("Order ID can not be null.");
document.form1.ordernumber.focus();
return false;
}

if(document.form1.mail.value=="")
{
alert("Email can not be null.");
document.form1.mail.focus();
return false;
}
if(chkemail(document.form1.mail.value)!=1)
{
alert("Email format is invalid.");
document.form1.mail.focus();
return false;
}
if(document.form1.verifycode.value=="")
{
alert("Image Verify Code can not be null.");
document.form1.verifycode.focus();
return false;
}
return true;
}