//email validator
function isemail(s)
{      
    var i = 1;
    var sLength = s.length;
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }
    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}

function checkform ( form )
{
  if (form.eName.value == "") {
    alert( "Please enter your Name." );
    form.eName.focus();
	form.eName.style.border = "1px solid red";
    return false ;
  }
  if (form.eCompany.value == "") {
    alert( "Please enter your Company." );
    form.eCompany.focus();
	form.eCompany.style.border = "1px solid red";
    return false ;
  }
  if (form.eEmail.value == "") {
    alert( "Please enter your Email address." );
    form.eEmail.focus();
	form.eEmail.style.border = "1px solid red";
    return false ;
  }
  if (!isemail(document.enquiryform.eEmail.value))
  {
	window.alert("Please enter a valid Email address (eg. user@company.com)");
	document.enquiryform.eEmail.focus();
	form.eEmail.style.border = "1px solid red";
	return false;
  }
  if (form.ePhone.value == "") {
    alert( "Please enter your Phone number." );
    form.ePhone.focus();
	form.ePhone.style.border = "1px solid red";
    return false ;
  }
  // ** END **
  return true ;
}