function showHide(objId) {
   Id = document.getElementById(objId); 
   if(Id.style.display=='block' || Id.style.display=='')
   Id.style.display='none';
   else
   Id.style.display='';
}
function testss() {
	alert('ddddddddddddd');
}
function CheckAll(frmName, boxName) {
   var Thebox = eval('document.'+frmName+'.elements');
   for (var i=0; i < Thebox.length; i++) {
      if (Thebox[i].id != boxName) {
         Thebox[i].checked = document.getElementById(boxName).checked;
      }
   }
}

function checkEmailAddress(field) {
   if(field.value.replace(' ','').length <=  0) {
      return false;
   }
   var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
   if(field.value.length==0)
   return true;

   if (goodEmail){
      return true;
   } else {
      alert('กรอกข้อมูลอีเมล์ไม่ถูกต้อง');
      field.focus();
      field.select();
      return false;
   }
}

function varidateDateformat(e) {
   var reg= new RegExp(/[0-9]{2}\/[0-9]{2}\/[0-9]{4}/);
   if (reg.test(e.value) == false){
      alert('รูปแบบวันที่ผิด โปรดกรอกใหม่\n example: 31/12/2548');
      return false;
   }   
   return true;
}