 <script type="text/javascript">
function ajax_load()
{
     var url="/apex_chemicals/check_email.php";
    var data = getFormData("frm_email");
    //alert(data);
    ajaxLoad('post',url,data,'');
}

function check()
{
var email=document.getElementById('email').value;

    if(email=='')
   {
       alert('กรุณากรอก Email');
       return false;
   }
   else 
   {
       var mail=check_email();
   if(!(mail==false))
           {ajax_load();}
   }
   
}
function check_email(){ 
 
var regex_email=/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*\@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.([a-zA-Z]){2,4})$/ 
var email=document.getElementById('email').value; 
 //alert(email); 
if(!email.match(regex_email)){ 
      
alert('รูปแบบ email ไม่ถูกต้อง'); 
document.getElementById('email').value ="";
   
   return false;
} 
} 
</script>

