// JavaScript Document
// JavaScript Document
function checkform ( holditform )
{

  if (holditform.zxname.value == "") {
    alert( "Please enter your name." );
    holditform.zxname.focus();
    return false ;
  }
    if (holditform.zxzip.value == "") {
    alert( "Please enter your zipcode." );
    holditform.zxzip.focus();
    return false ;
  }
    if (holditform.zxemail.value == "") {
    alert( "Please enter your email." );
    holditform.zxemail.focus();
    return false ;
  }
    if (holditform.zxbrand.value == "") {
    alert( "Please enter brand or product." );
    holditform.zxbrand.focus();
    return false ;
  }
      if (holditform.zxcomments.value == "") {
    alert( "Please enter more information." );
    holditform.zxcomments.focus();
    return false ;
  }
  return true ;
}