function checkValue() 
{
  firstN = document.submitF.firstName.value;  
  lastN = document.submitF.lastName.value;
  email = document.submitF.senderEmail.value;  
  //sendFile = document.submitF.sendFile.value;
  
  // check value in empoyer.php form
  compN = document.submitF.companyName.value;
  category= document.submitF.category.value;
  contactP = document.submitF.contactP.value;
  contactEmail = document.submitF.contactEmail.value;
  contactPhone = document.submitF.contactPhone.value; 

  ok = true;

  if ( firstN=="" || lastN == "")
  {
    alert( "Please enter First Name" );
    ok = false;
  }
  
  if (lastN == "")
  {
    alert( "Please enter Last Name" );
    ok = false;
  }
  
  emailConfirm = /^(\w|\.)+@[a-zA-Z]([a-zA-Z0-9]|\-)*(\.[a-zA-Z]([a-zA-Z0-9]|\-)*)+$/;
  if ( (! emailConfirm.exec( email )) || (! emailConfirm.exec(contactEmail)) ) 
  {
    alert( "Please enter a valid email address" );
    ok = false;
  } 
  
  if (compN == "")
  {
    alert( "Please enter Company Name" );
    ok = false;
  }
  
  if (contactP == "")
  {
    alert( "Please enter Contact Person Name" );
    ok = false;
  }
  
  phoneConfirm = /^[0-9]{10}$/;  
   if (! phoneConfirm.exec(contactP))
  {
    alert( "Please enter Correct Phone Number" );
    ok = false;
  }

  return ok;
}