function check_form(){ 
ob = document.getElementById("fuser"); 
 if (ob.value=="") {
  alert("Required field.");
  ob.focus();
  return false;
 } 
 
 ob = document.getElementById("fpass"); 
 if (ob.value=="") {
   alert("Required field.");
  ob.focus();
  return false;
 } 
 
ob = document.getElementById("fname"); 
 if (ob.value=="") {
   alert("Required field.");
  ob.focus();
  return false;
 } 
 
 ob = document.getElementById("lname"); 
 if (ob.value=="") {
  alert("Required field.");
  ob.focus();
  return false;
 } 
 
 ob = document.getElementById("address"); 
 if (ob.value=="") {
   alert("Required field.");
  ob.focus();
  return false;
 } 
 
ob = document.getElementById("city"); 
 if (ob.value=="") {
   alert("Required field.");
  ob.focus();
  return false;
 } 
 
  ob = document.getElementById("zipcode"); 
 if (ob.value=="") {
  alert("Required field.");
  ob.focus();
  return false;
 } 
 
 ob = document.getElementById("state"); 
 if (ob.value=="") {
   alert("Required field.");
  ob.focus();
  return false;
 } 
 
ob = document.getElementById("country"); 
 if (ob.value=="") {
  alert("Required field.");
  ob.focus();
  return false;
 } 

///////////////email///////////////
 ob = document.getElementById("email"); 
 if (ob.value=="") {
  alert("Required field.");
  ob.focus();
  return false;
 } 
 if (!isEmail(ob.value)) {
  alert("Please enter a vaild Email Address");
  ob.focus();
  return false;
 }
 /////////////////////////////
 
 return true;
}